Chemical Abbreviations
Abbreviations (the shortened form of a word or phrase) and acronyms (words formed from the initial letters of a phrase) are commonly used in technical writing. For the first reference to a term in the text, the term should be used in full with the abbreviation included in brackets. For the remainder of the text the abbreviation should be used. However, abbreviations should not be used in the abstract or in the title.
Standard abbreviations and acronyms of chemical compounds used by the Journal of Organic Chemistry (JOC) require no definition.
No. , Abbreviation , Compound name , Molecular formula , Molar mass
(g/mol) Note
1 Ac
acetyl
CH3CO 43.045 the acetic acid radical
2 acac
acetylacetonate
C5H8O2 100.12
3 ADP
adenosine 5′-diphosphate
C10H15N5O10P2 427.20
4 AIBN
2,2′-azobisisobutyronitrile
C8H12N4 164.21
5 AMP
adenosine 5′-monophosphate
C10H14N5O7P 347.22
6 Ar
aryl
C6H5 77.104 radical, the simplest aryl group is phenyl (C6H5)
7 ATP
adenosine 5′-triphosphate
C10H16N5O13P3 507.18
8 9-BBN
9-borabicyclo[3.3.1]nonyl
C8H14B 121.01 radical; used as a hydroboration reagent
9 9-BBN-H
9-borabicyclo[3.3.1]nonane
C8H15B 122.02 used in organic chemistry as a hydroboration reagent
10 Bn, Bzl
benzyl
C6H5CH2 91.130 radical derived from toluene
11 BOC, Boc
tert-butoxycarbonyl
C5H9O2 101.12 radical; an amino-protecting group used in peptide synthesis
12 BODIPY
dipyrromethene boron difluoride
C9H7BF2N2 191.97
13 bpy
2,2′-bipyridyl
C10H8N2 156.18
14 Bu, n-Bu
n-butyl
C4H9 57.114 radical derived from normal (primary) butane
15 s-Bu
sec-butyl
C4H9 57.114 radical derived from secondary butane
16 t-Bu
tert-butyl
C4H9 57.114 radical derived from tertiary butane
17 Bz
benzoyl
C6H5CO 105.11 radical derived from benzoic acid (not benzyl)
18 cAMP
adenosine cyclic 3′,5′-phosphate
C10H12N5O6P 329.21
19 CAN
ceric ammonium nitrate
Ce(NH4)2(NO3)6 548.22
20 CBZ, Cbz
benzyloxycarbonyl
C8H7O2 135.14 radical; amino-protecting radical used (as the chloride) in peptide synthesis
21 cod
1,5-cyclooctadiene
C8H12 108.18
22 cot
1,3,5,7-cyclooctatetraene
C8H8 104.15
23 Cp
cyclopentadienyl
C5H5 65.093 radical closely related to cyclopentadiene
24 m-CPBA
meta-chloroperoxybenzoic acid
C7H5ClO3 172.57
25 Cy
cyclohexyl
C6H11 83.152 radical formed by removal of hydrogen from cyclohexane
26 DABCO
1,4-diazabicyclo[2.2.2]octane
C6H12N2 112.17
27 dansyl
5-(dimethylamino)-1-naphthalenesulfonyl
C12H12NO2S 234.29 sulfonyl radicall; a blocking agent for NH2 groups, used in peptide synthesis
28 DBN
1,5-diazabicyclo[4.3.0]non-5-ene
C7H12N2 124.18
29 DBU
1,8-diazabicyclo[5.4.0]undec-7-ene
C9H16N2 152.24
30 DCC
N,N’-dicyclohexylcarbodiimide
C13H22N2 206.33
31 DCE
1,2-dichloroethane
C2H4Cl2 98.959
32 DCM
dichloromethane
CH2Cl2 84.933
33 DDQ
2,3-dichloro-5,6-dicyano-1,4-benzoquinone
C8Cl2N2O2 227.00
34 DEAD
diethyl azodicarboxylate
C6H10N2O4 174.15
35 DIBALH
diisobutylaluminum hydride
C8H19Al 142.22
36 DMA
dimethylacetamide
C4H9NO 87.120
37 DMAP
4-(N,N-dimethylamino)pyridine
C7H10N2 122.17
38 DMDO
dimethyldioxirane
C3H6O2 74.078
39 DME
1,2-dimethoxyethane
C4H10O2 90.121
40 DMF
dimethylformamide
C3H7NO 73.094
41 DMPU
1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone
C6H12N2O 128.17
42 DMSO
dimethyl sulfoxide
C2H6OS 78.133
43 DMT
4,4′-dimethoxyltriphenylmethyl
C21H19O2 303.37 radical; a protecting group for alcohols
44 DPS
tert-butyldiphenylsilyl
C16H19Si 239.41 radical; also known as TBDPS or TPS
45 DTT
dithiothreitol
C4H10O2S2 154.25
46 EDTA
ethylenediaminetetraacetic acid
C10H16N2O8 292.24
47 Et
ethyl
C2H5 29.061 alkyl radical derived from ethane
48 Fmoc
9-fluorenylmethoxycarbonyl
C15H11O2 223.25 radical; protecting group in the peptide synthesis
49 GTP
guanosine 5′-triphosphate
C10H16N5O14P3 523.18
50 HMPA
hexamethylphosphoric triamide
C6H18N3OP 179.20
51 LAH
lithium aluminum hydride
H4AlLi 37.954
52 LDA
lithium diisopropylamide
C6H14LiN 107.12
53 LHMDS
lithium hexamethyldisilazane
C6H18LiNSi2 167.33
54 LTMP
lithium 2,2,6,6-tetramethylpiperidide
C9H18LiN 147.19
55 Me
methyl
CH3 15.034 radical derived from methane
56 MEM
(2-methoxyethoxy)methyl
C4H9O2 89.113 radical used as an OH-protecting reagent
57 Mes
2,4,6-trimethylphenyl
C9H11 119.18 radical (also known as mesityl)
58 MOM
methoxymethyl
C2H5O 45.061 radical; generally used to protect the hydroxyl group
59 Ms
methylsulfonyl
CH3SO2 79.098 radical (also known as mesyl)
60 MTBE
methyl tert-butyl ether
C5H12O 88.148
61 NAD+
nicotinamide adenine dinucleotide
C21H27N7O14P2 663.43 oxidized form
62 NADH
nicotinamide adenine dinucleotide
C21H29N7O14P2 665.44 reduced form
63 NBS
N-bromosuccinimide
C4H4BrNO2 177.98
64 NCS
N-chlorosuccinimide
C4H4ClNO2 133.53
65 NMO
N-methylmorpholine-N-oxide
C5H11NO2 117.15
66 NMP
N-methylpyrrolidone
C5H9NO 99.131
67 PCC
pyridinium chlorochromate
C5H6ClCrNO3 215.56
68 PDC
pyridinium dichromate
C10H12Cr2N2O7 376.20
69 Ph
phenyl
C6H5 77.104 radical derived from benzene
70 piv
pivaloyl
(CH3)3CCO 85.124 radical used as a protective group for alcohols
71 PMB
p-methoxybenzyl
CH3OC6H4CH2 121.16 radical used in protecting alcohols in multi-step organic synthesis
72 PPTS
pyridinium para-toluenesulfonate
C12H13NO3S 251.30
73 Pr
propyl
C3H7 43.088 radical derived from propane
74 iPr
isopropyl
(CH3)2CH 43.088 radical derived from propane
75 py
pyridine
C5H5N 79.100
76 SEM
2-(trimethylsilyl)ethoxymethyl
C6H15OSi 131.27 radical; protecting group in carbohydrate chemistry
77 TBAB
tetrabutylammonium bromide
C16H36BrN 322.37
78 TBAC
tetrabutylammonium chloride
C16H36ClN 277.92
79 TBAF
tetrabutylammonium fluoride
C16H36FN 261.46
80 TBS
tert-butyldimethylsilyl
(CH3)3CSi(CH3)2 115.27 radical; usually used as protecting groups for alcohols in organic synthesis
81 TBHP
tert-butyl hydroperoxide
(CH3)3COOH 90.121
82 TCA
trichloroacetic acid
C2HCl3O2 163.39
83 TEAB
tetraethylammonium bromide
C8H20BrN 210.16
84 TCNE
tetracyanoethylene
C6N4 128.09
85 TEMPO
2,2,6,6-tetramethylpiperidin-1-oxyl
C9H18NO 156.25 stable free radical
86 Tf
trifluoromethanesulfonyl
CF3SO2 133.07 radical (also known as triflyl)
87 TFA
trifluoroacetic acid
C2HF3O2 114.02
88 TFAA
trifluoroacetic anhydride
C4F6O3 210.03
89 THF
tetrahydrofuran
C4H8O 72.106
90 THP
tetrahydropyran-2-yl
C5H9O 85.124 radical; common intermediates in organic synthesis; used as a protecting group for alcohols
91 TIPS
triisopropylsilyl
C9H21Si 157.35 radical for the protection of alcohols as triisopropylsilyl ethers
92 TMAI
tetramethylammonium iodide
C4H12IN 201.05
93 TMEDA
N,N,N’,N’-tetramethyl-1,2-ethylenediamine
C6H16N2 116.20
94 TMS
tetramethylsilane
Si(CH3)4 88.224 known as trimethylsilyl
95 Tr
triphenylmethyl
(C6H5)3C 243.32 radical (also known as trityl)
96 Ts
para-toluenesulfonyl
CH3C6H4SO2 155.19 radical (also known as tosyl)
Bibliography:
Information for Authors. JOC. ACS Publications. 21 Sep. 2012. <http://pubs.acs.org/page/joceah/submission/authors.html>.