Wm. Craig Byrdwell, phd

Taking Lipid Analysis into the 21st Century

Click HERE for a conveniently printable .pdf version of this extensive mass list, from C12 to C30 (fourteen [14] pages!).

For Fatty Acid Abbreviations, see ‘Fatty Acids’ page.

Calculated monoisotopic masses of Fatty Acids and Triacylglycerols and their adducts and fragments are based on the following atomic isotope masses:

 

1H = 1.0078250321

12C = 12.000000

14N = 14.0030740052

16O = 15.9949146221

23Na = 22.98976967

31P = 30.97376151

 

These masses are the most recent suggested isotopic masses from the National Institute of Standards and Technology (NIST) at:

 

Physics.NIST.gov/

PhysRefData/Compositions/

© 2005-2018

The figures and tables on this website are copyrighted in 2005-2018 by William Craig Byrdwell and Byrdwell.com.  Please reference

 

Triacylglycerols.com

© 2005-2018

The figures and tables on this website are copyrighted in 2005-2018 by William Craig Byrdwell and Byrdwell.com.  Please reference

 

Triacylglycerols.com

For Fatty Acid Abbreviations, see ‘Fatty Acids’ page.

For Fatty Acid Abbreviations, see ‘Fatty Acids’ page.

© 2005-2018

The figures and tables on this website are copyrighted in 2005-2018 by William Craig Byrdwell and Byrdwell.com.  Please reference

 

Triacylglycerols.com

This page is best viewed by Internet Explorer.

Firefox causes undesirable overlap of data tables.

Abbrev.

ECN

Accurate

[M+H]+

Nominal

[M+NH4]+

[M+Na]+

[M+Li]+

DAG 1,2

DAG 2,3

DAG 1,3

LnLgN

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

685.61

773.74

683.60

LnLgCe

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

685.61

803.79

713.64

LnLgXi

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

685.61

801.77

711.63

LnLgMo

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

685.61

831.82

741.68

LnLg28:1

62

1107.02

1108.03

1107

1125.05

1129.00

1114.03

685.61

829.80

739.66

LnLg30

66

1137.06

1138.07

1138

1155.10

1159.05

1144.08

685.61

859.85

769.71

LnLg30:1

64

1135.05

1136.06

1135

1153.08

1157.03

1142.07

685.61

857.83

767.69

AGB

60

1000.94

1001.95

1001

1018.97

1022.92

1007.96

661.61

689.64

691.66

AGE

58

998.92

999.93

999

1016.96

1020.91

1005.94

661.61

687.63

689.64

AGLg

62

1028.97

1029.98

1029

1047.01

1050.95

1035.99

661.61

717.68

719.69

AGN

60

1026.96

1027.96

1027

1044.99

1048.94

1033.97

661.61

715.66

717.68

AGCe

64

1057.00

1058.01

1057

1075.04

1078.98

1064.02

661.61

745.71

747.72

AGXi

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

661.61

743.69

745.71

AGMo

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

661.61

773.74

775.75

AG28:1

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

661.61

771.72

773.74

AG30

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

661.61

801.77

803.79

AG30:1

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

661.61

799.75

801.77

ABE

62

1028.97

1029.98

1029

1047.01

1050.95

1035.99

691.66

717.68

689.64

ABLg

66

1059.02

1060.03

1059

1077.05

1081.00

1066.03

691.66

747.72

719.69

ABN

64

1057.00

1058.01

1057

1075.04

1078.98

1064.02

691.66

745.71

717.68

ABCe

68

1087.05

1088.06

1088

1105.08

1109.03

1094.07

691.66

775.75

747.72

ABXi

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

691.66

773.74

745.71

ABMo

70

1115.08

1116.09

1116

1133.12

1137.06

1122.10

691.66

803.79

775.75

AB28:1

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

691.66

801.77

773.74

AB30

72

1143.11

1144.12

1144

1161.15

1165.09

1150.13

691.66

831.82

803.79

AB30:1

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

691.66

829.80

801.77

AELg

64

1057.00

1058.01

1057

1075.04

1078.98

1064.02

689.64

745.71

719.69

AEN

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

689.64

743.69

717.68

AECe

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

689.64

773.74

747.72

AEXi

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

689.64

771.72

745.71

AEMo

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

689.64

801.77

775.75

AE28:1

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

689.64

799.75

773.74

AE30

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

689.64

829.80

803.79

AE30:1

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

689.64

827.79

801.77

ALgN

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

719.69

773.74

717.68

ALgCe

70

1115.08

1116.09

1116

1133.12

1137.06

1122.10

719.69

803.79

747.72

ALgXi

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

719.69

801.77

745.71

ALgMo

72

1143.11

1144.12

1144

1161.15

1165.09

1150.13

719.69

831.82

775.75

ALg28:1

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

719.69

829.80

773.74

ALg30

74

1171.14

1172.15

1172

1189.18

1193.13

1178.16

719.69

859.85

803.79

ALg30:1

72

1169.13

1170.14

1170

1187.16

1191.11

1176.14

719.69

857.83

801.77

GBE

60

1026.96

1027.96

1027

1044.99

1048.94

1033.97

689.64

717.68

687.63

GBLg

64

1057.00

1058.01

1057

1075.04

1078.98

1064.02

689.64

747.72

717.68

GBN

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

689.64

745.71

715.66

GBCe

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

689.64

775.75

745.71

GBXi

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

689.64

773.74

743.69

GBMo

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

689.64

803.79

773.74

GB28:1

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

689.64

801.77

771.72

GB30

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

689.64

831.82

801.77

GB30:1

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

689.64

829.80

799.75

GELg

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

687.63

745.71

717.68

GEN

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

687.63

743.69

715.66

GECe

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

687.63

773.74

745.71

GEXi

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

687.63

771.72

743.69

GEMo

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

687.63

801.77

773.74

GE28:1

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

687.63

799.75

771.72

GE30

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

687.63

829.80

801.77

GE30:1

66

1137.06

1138.07

1138

1155.10

1159.05

1144.08

687.63

827.79

799.75

Abbrev.

ECN

Accurate

[M+H]+

Nominal

[M+NH4]+

[M+Na]+

[M+Li]+

DAG 1,2

DAG 2,3

DAG 1,3

GLgN

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

717.68

773.74

715.66

GLgCe

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

717.68

803.79

745.71

GLgXi

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

717.68

801.77

743.69

GLgMo

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

717.68

831.82

773.74

GLg28:1

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

717.68

829.80

771.72

GLg30

72

1169.13

1170.14

1170

1187.16

1191.11

1176.14

717.68

859.85

801.77

GLg30:1

70

1167.11

1168.12

1168

1185.15

1189.09

1174.13

717.68

857.83

799.75

BELg

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

717.68

745.71

747.72

BEN

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

717.68

743.69

745.71

BECe

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

717.68

773.74

775.75

BEXi

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

717.68

771.72

773.74

BEMo

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

717.68

801.77

803.79

BE28:1

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

717.68

799.75

801.77

BE30

72

1169.13

1170.14

1170

1187.16

1191.11

1176.14

717.68

829.80

831.82

BE30:1

70

1167.11

1168.12

1168

1185.15

1189.09

1174.13

717.68

827.79

829.80

ELgN

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

745.71

773.74

743.69

ELgCe

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

745.71

803.79

773.74

ELgXi

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

745.71

801.77

771.72

ELgMo

72

1169.13

1170.14

1170

1187.16

1191.11

1176.14

745.71

831.82

801.77

ELg28:1

70

1167.11

1168.12

1168

1185.15

1189.09

1174.13

745.71

829.80

799.75

ELg30

74

1197.16

1198.17

1198

1215.19

1219.14

1204.17

745.71

859.85

829.80

ELg30:1

72

1195.14

1196.15

1196

1213.18

1217.13

1202.16

745.71

857.83

827.79

OBE

58

998.92

999.93

999

1016.96

1020.91

1005.94

661.61

717.68

659.60

OBLg

62

1028.97

1029.98

1029

1047.01

1050.95

1035.99

661.61

747.72

689.64

OBN

60

1026.96

1027.96

1027

1044.99

1048.94

1033.97

661.61

745.71

687.63

OBCe

64

1057.00

1058.01

1057

1075.04

1078.98

1064.02

661.61

775.75

717.68

OBXi

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

661.61

773.74

715.66

OBMo

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

661.61

803.79

745.71

OB28:1

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

661.61

801.77

743.69

OB30

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

661.61

831.82

773.74

OB30:1

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

661.61

829.80

771.72

OELg

60

1026.96

1027.96

1027

1044.99

1048.94

1033.97

659.60

745.71

689.64

OEN

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

659.60

743.69

687.63

OECe

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

659.60

773.74

717.68

OEXi

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

659.60

771.72

715.66

OEMo

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

659.60

801.77

745.71

OE28:1

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

659.60

799.75

743.69

OE30

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

659.60

829.80

773.74

OE30:1

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

659.60

827.79

771.72

OLgN

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

689.64

773.74

687.63

OLgCe

66

1085.03

1086.04

1085

1103.07

1107.02

1092.05

689.64

803.79

717.68

OLgXi

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

689.64

801.77

715.66

OLgMo

68

1113.06

1114.07

1114

1131.10

1135.05

1120.08

689.64

831.82

745.71

OLg28:1

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

689.64

829.80

743.69

OLg30

70

1141.10

1142.10

1142

1159.13

1163.08

1148.11

689.64

859.85

773.74

OLg30:1

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

689.64

857.83

771.72

LLnA

46

908.78

909.79

909

926.82

930.77

915.80

597.49

629.55

631.57

LLnG

44

906.77

907.78

907

924.80

928.75

913.78

597.49

627.54

629.55

LLnB

48

936.81

937.82

937

954.85

958.80

943.83

597.49

657.58

659.60

LLnE

46

934.80

935.81

935

952.83

956.78

941.81

597.49

655.57

657.58

LLnLg

50

964.85

965.85

965

982.88

986.83

971.86

597.49

685.61

687.63

LLnN

48

962.83

963.84

963

980.86

984.81

969.85

597.49

683.60

685.61

LLnCe

52

992.88

993.89

993

1010.91

1014.86

999.89

597.49

713.64

715.66

LLnXi

50

990.86

991.87

991

1008.90

1012.84

997.88

597.49

711.63

713.64

LLnMo

54

1020.91

1021.92

1021

1038.94

1042.89

1027.92

597.49

741.68

743.69

LLn28:1

52

1018.89

1019.90

1019

1036.93

1040.87

1025.91

597.49

739.66

741.68

LLn30

56

1048.94

1049.95

1049

1066.97

1070.92

1055.96

597.49

769.71

771.72

LLn30:1

54

1046.92

1047.93

1047

1064.96

1068.91

1053.94

597.49

767.69

769.71

LAG

52

940.85

941.85

941

958.88

962.83

947.86

631.57

661.61

629.55

LAB

56

970.89

971.90

971

988.93

992.87

977.91

631.57

691.66

659.60

LAE

54

968.88

969.89

969

986.91

990.86

975.89

631.57

689.64

657.58

LALg

58

998.92

999.93

999

1016.96

1020.91

1005.94

631.57

719.69

687.63

LAN

56

996.91

997.92

997

1014.94

1018.89

1003.92

631.57

717.68

685.61

LACe

60

1026.96

1027.96

1027

1044.99

1048.94

1033.97

631.57

747.72

715.66

LAXi

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

631.57

745.71

713.64

LAMo

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

631.57

775.75

743.69

LA28:1

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

631.57

773.74

741.68

LA30

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

631.57

803.79

771.72

LA30:1

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

631.57

801.77

769.71

LGB

54

968.88

969.89

969

986.91

990.86

975.89

629.55

689.64

659.60

LGE

52

966.86

967.87

967

984.90

988.84

973.88

629.55

687.63

657.58

LGLg

56

996.91

997.92

997

1014.94

1018.89

1003.92

629.55

717.68

687.63

LGN

54

994.89

995.90

995

1012.93

1016.87

1001.91

629.55

715.66

685.61

LGCe

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

629.55

745.71

715.66

LGXi

56

1022.92

1023.93

1023

1040.96

1044.91

1029.94

629.55

743.69

713.64

LGMo

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

629.55

773.74

743.69

LG28:1

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

629.55

771.72

741.68

LG30

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

629.55

801.77

771.72

LG30:1

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

629.55

799.75

769.71

Abbrev.

ECN

Accurate

[M+H]+

Nominal

[M+NH4]+

[M+Na]+

[M+Li]+

DAG 1,2

DAG 2,3

DAG 1,3

LBE

56

996.91

997.92

997

1014.94

1018.89

1003.92

659.60

717.68

657.58

LBLg

60

1026.96

1027.96

1027

1044.99

1048.94

1033.97

659.60

747.72

687.63

LBN

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

659.60

745.71

685.61

LBCe

62

1054.99

1055.99

1055

1073.02

1076.97

1062.00

659.60

775.75

715.66

LBXi

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

659.60

773.74

713.64

LBMo

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

659.60

803.79

743.69

LB28:1

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

659.60

801.77

741.68

LB30

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

659.60

831.82

771.72

LB30:1

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

659.60

829.80

769.71

LELg

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

657.58

745.71

687.63

LEN

56

1022.92

1023.93

1023

1040.96

1044.91

1029.94

657.58

743.69

685.61

LECe

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

657.58

773.74

715.66

LEXi

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

657.58

771.72

713.64

LEMo

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

657.58

801.77

743.69

LE28:1

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

657.58

799.75

741.68

LE30

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

657.58

829.80

771.72

LE30:1

62

1107.02

1108.03

1107

1125.05

1129.00

1114.03

657.58

827.79

769.71

LLgN

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

687.63

773.74

685.61

LLgCe

64

1083.02

1084.03

1083

1101.05

1105.00

1090.03

687.63

803.79

715.66

LLgXi

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

687.63

801.77

713.64

LLgMo

66

1111.05

1112.06

1112

1129.08

1133.03

1118.07

687.63

831.82

743.69

LLg28:1

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

687.63

829.80

741.68

LLg30

68

1139.08

1140.09

1140

1157.12

1161.06

1146.10

687.63

859.85

771.72

LLg30:1

66

1137.06

1138.07

1138

1155.10

1159.05

1144.08

687.63

857.83

769.71

LnAG

50

938.83

939.84

939

956.86

960.81

945.85

629.55

661.61

627.54

LnAB

54

968.88

969.89

969

986.91

990.86

975.89

629.55

691.66

657.58

LnAE

52

966.86

967.87

967

984.90

988.84

973.88

629.55

689.64

655.57

LnALg

56

996.91

997.92

997

1014.94

1018.89

1003.92

629.55

719.69

685.61

LnAN

54

994.89

995.90

995

1012.93

1016.87

1001.91

629.55

717.68

683.60

LnACe

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

629.55

747.72

713.64

LnAXi

56

1022.92

1023.93

1023

1040.96

1044.91

1029.94

629.55

745.71

711.63

LnAMo

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

629.55

775.75

741.68

LnA28:1

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

629.55

773.74

739.66

LnA30

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

629.55

803.79

769.71

LnA30:1

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

629.55

801.77

767.69

LnGB

52

966.86

967.87

967

984.90

988.84

973.88

627.54

689.64

657.58

LnGE

50

964.85

965.85

965

982.88

986.83

971.86

627.54

687.63

655.57

LnGLg

54

994.89

995.90

995

1012.93

1016.87

1001.91

627.54

717.68

685.61

LnGN

52

992.88

993.89

993

1010.91

1014.86

999.89

627.54

715.66

683.60

LnGCe

56

1022.92

1023.93

1023

1040.96

1044.91

1029.94

627.54

745.71

713.64

LnGXi

54

1020.91

1021.92

1021

1038.94

1042.89

1027.92

627.54

743.69

711.63

LnGMo

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

627.54

773.74

741.68

LnG28:1

56

1048.94

1049.95

1049

1066.97

1070.92

1055.96

627.54

771.72

739.66

LnG30

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

627.54

801.77

769.71

LnG30:1

58

1076.97

1077.98

1077

1095.01

1098.95

1083.99

627.54

799.75

767.69

LnBE

54

994.89

995.90

995

1012.93

1016.87

1001.91

657.58

717.68

655.57

LnBLg

58

1024.94

1025.95

1025

1042.97

1046.92

1031.96

657.58

747.72

685.61

LnBN

56

1022.92

1023.93

1023

1040.96

1044.91

1029.94

657.58

745.71

683.60

LnBCe

60

1052.97

1053.98

1053

1071.01

1074.95

1059.99

657.58

775.75

713.64

LnBXi

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

657.58

773.74

711.63

LnBMo

62

1081.00

1082.01

1081

1099.04

1102.98

1088.02

657.58

803.79

741.68

LnB28:1

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

657.58

801.77

739.66

LnB30

64

1109.03

1110.04

1109

1127.07

1131.02

1116.05

657.58

831.82

769.71

LnB30:1

62

1107.02

1108.03

1107

1125.05

1129.00

1114.03

657.58

829.80

767.69

LnELg

56

1022.92

1023.93

1023

1040.96

1044.91

1029.94

655.57

745.71

685.61

LnEN

54

1020.91

1021.92

1021

1038.94

1042.89

1027.92

655.57

743.69

683.60

LnECe

58

1050.96

1051.96

1051

1068.99

1072.94

1057.97

655.57

773.74

713.64

LnEXi

56

1048.94

1049.95

1049

1066.97

1070.92

1055.96

655.57

771.72

711.63

LnEMo

60

1078.99

1079.99

1079

1097.02

1100.97

1086.00

655.57

801.77

741.68

LnE28:1

58

1076.97

1077.98

1077

1095.01

1098.95

1083.99

655.57

799.75

739.66

LnE30

62

1107.02

1108.03

1107

1125.05

1129.00

1114.03

655.57

829.80

769.71

LnE30:1

60

1105.00

1106.01

1105

1123.04

1126.98

1112.02

655.57

827.79

767.69

ABC Triacylglycerols by Name (C12 to C30) - Part III

 

 

Accurate

 

Nominal

 

 

 

 

 

 

Abbrev.

ECN

Mass

[M+H]+

Mass

[M+NH4]+

[M+Na]+

[M+Li]+

DAG 1,2

DAG 2,3

DAG 1,3