CAS Standard Abbreviations (1993)

Listing A: Terms to Abbreviations | Listing B: Abbreviations to Terms

Listing B: Abbreviations to Terms

Standard Abbreviations, Acronyms, Special Characters, and Symbols in CAS Computer-Readable Files and Publications. Chemical Abstracts Service, 1993. Reproduced for educational purposes with permission from CAS, a Division of the American Chemical Society.

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

A

Full Term
Abbreviation
A
ampere (unit)
Å
angstrom (unit)
abs.
absolute
abstr.
abstract
a.c.
alternating current
ACTH
adrenocorticotropin
addn.
addition
addnl.
additional(ly)
ADP
adenosine 5'-diphosphate
alc.
alcohol(ic)
aliph.
aliphatic
alk.
alkaline (notalkali)
alky.
alkalinity
AMP
adenosine 5'-monophosphate
amt.
amount
amu
atomic mass unit
anal.
analysis, analytical(ly)
anhyd.
anhydrous
AO
atomic orbital
app.
apparatus
approx.
approximate(ly)
approxn.
approximation
APW
augmented planewave
aq.
aqueous
arom.
aromatic
assoc.
associate
assocd.
associated
assocg.
associating
assocn.
association
asym.
asymmetric(al)(ly)
at.
atomic
atm
atmosphere (unit)
atm.
atmospheric
ATP
adenosine 5'-triphosphate
ATPase
adenosine triphosphatase
av.
average
AVE
all valence electron

B

Full Term
Abbreviation
bbl
barrel (unit)
bcc.
body centered cubic
BCS
Bardeen-Cooper-Schrieffer
BOD
biochemical oxygen demand
b.p.
boiling point
Bq
becquerel (unit)
Btu
British thermal unit
Bu
butyl (normal)
bu
bushel (unit)
uB
Bohrmagneton (unit)

C

Full Term
Abbreviation
C
coulomb (unit)
°C
degree Celsius (centigrade) (unit)
cal
calorie (unit)
calc.
calculate
calcd.
calculated
calcg.
calculating
calcn.
calculation
cAMP
cyclic AMP
c.d.
current density
CD
circular dichroism
CDP
cytidine 5'-diphosphate
CEPA
coupled electron pair approximation
cfm
cubic feet per minute (unit)
cGMP
cyclic GMP
chem.
chemical(ly), chemistry
CI
configuration interaction
Ci
curie (unit)
clin.
clinical(ly)
CM-cellulose
carboxymethyl cellulose
CMP
cytidine 5'-monophosphate
CNDO
complete neglect of differential overlap
CoA
coenzyme A
COD
chemical oxygen demand
coeff.
coefficient
com.
commercial(ly)
compd.
compound
compn.
composition
ConA
concanavalin A
conc.
concentrate
concd.
concentrated
concg.
concentrating
concn.
concentration
cond.
conductivity
const.
constant
contg.
containing
cor.
corrected
CP
chemically pure
CPA
coherent potential approximation
crit.
critical
cryst.
crystalline
crystd.
crystallized
crystg.
crystallizing
crystn.
crystallization
CTP
cytidine 5'-triphosphate
cwt
hundredweight (unit)

D

Full Term
Abbreviation
D
debye unit
d.
density
d.c.
direct current
DEAE-cellulose
dietylaminoethyl cellulose
decomp.
decompose
decompd.
decomposed
decompg.
decomposing
decompn.
decomposition
degrdn.
degradation
deriv.
derivative
det.
determine
detd.
determined
detg.
determining
detn.
determination
diam.
diameter
dil.
dilute
dild.
diluted
dilg.
diluting
diln.
dilution
DIM
diatomics-in-molecules
dissoc.
dissociate
dissocd.
dissociated
dissocg.
dissociating
dissocn.
dissociation
distd.
distilled
distg.
distilling
distn.
distillation
DMF
dimethylformamide
DMSO
dimethyl sulfoxide
DNA
deoxyribonucleic acid
DNase
deoxyribonuclease
d.p.
degree of polymerization
dpm
disintegrations per minute (unit)
DTA
differential thermal analysis

E

Full Term
Abbreviation
ECG
electrocardiogram
ED
effective dose
EDTA
ethylenediaminetetraacetic acid
EEG
electroencephalogram
EHMO
extended Hueckel molecular orbital
elec.
electric(al)(ly)
ELISA
enzyme-linked immunosorbent assay
emf.
electromotive force
emu
electromagnetic unit
equil.
equilibrium(s)
equiv
equivalent (unit)
equiv.
equivalent
esp.
especially
ESR
electron spin resonance, electron paramagnetic resonance
est.
estimate
estd.
estimated
estg.
estimating
estn.
estimation
esu
electrostatic unit
Et
ethyl
eV
electron volt (unit)
evap.
evaporate
evapd.
evaporated
evapg.
evaporating
evapn.
evaporation
examd.
examined
examg.
examining
examn.
examination
expt.
experiment
exptl.
experimental(ly)
ext.
extract
extd.
extracted
extg.
extracting
extn.
extraction

F

Full Term
Abbreviation
F
farad
°F
degree Fahrenheit (unit)
FAD
flavin adenine dinucleotide
fcc.
face centered cubic
fermn.
fermentation
FMN
flavin mononucleotide
f.p.
freezing point
FSGO
floating spherical Gaussian orbital
FSH
follicle-stimulating hormone
ft
foot (unit)
ft-lb
foot-pound (unit)

G

Full Term
Abbreviation
g
gram (unit)
g
gravitational constant
G
gauss (unit)
gal
gallon (unit)
GDP
guanosine 5'-diphosphate
GeV
billion electron volts (unit)
GMP
guanosine 5'-monophosphate
GTO
Gaussian-type orbital
GTP
guanosine 5'-triphosphate
Gy
gray (absorbed radiation dose) (unit)

H

Full Term
Abbreviation
h
hour (unit)
H
henry (unit)
ha
hectare (unit)
HAM
hydrogenic atoms in molecules
Hb
hemoglobin
hcp.
hexagonal close-packed
HMO
Hueckel molecular orbital
HOMO
highest occupied molecular orbital
Hz
hertz (cycles/sec) (unit)

I

Full Term
Abbreviation
ICSH
interstitial cell-stimulating hormone
ID
inhibitory dose
IDP
inosine 5'-diphosphate
IEHMO
iterative extended Hueckel molecular orbital
IEPA
independent electron pair approximation
Ig
immunoglobulin
i.m.
intramuscular(ly)
IMP
inosine 5'-monophosphate
in.
inch (unit)
INDO
intermediate neglect of differential overlap
i.p.
intraperitoneal(ly)
IR
infrared
irradn.
irradiation
ITP
inosine 5'-triphosphate
IU
international unit
i.v.
intravenous(ly)

J

Full Term
Abbreviation
J
joule (unit)

K

Full Term
Abbreviation
K
kelvin (unit), degree Kelvin

L

Full Term
Abbreviation
L
liter (unit)
lab.
laboratory
lb
pound (unit)
LCAO
linear combination of atomic orbitals
LCFC
linear combination of fragment configuration
LD
lethal dose
LEED
low energy electron diffraction
LH
luteinizing hormone
liq.
liquid
lm
lumen (unit)
LUMO
lowest unoccupied molecular orbital
lx
lux (unit)

M

Full Term
Abbreviation
m
meter (unit)
m
molal (unit)
M
molar (unit)
m.
melts at, melting at
manuf.
manufacture
manufd.
manufactured
manufg.
manufacturing
math.
mathematical(ly)
max.
maximum
MC-SCF
multiconfigurational self-consistent field
Me
methyl (not metal)
mech.
mechanical(ly) (not mechanism)
metab.
metabolism
MHD
magnetohydrodynamics
mi
mile (unit)
MIM
molecules-in-molecules
min
minute (unit)
min.
minimum(s)
misc.
miscellaneous
mixt.
mixture
MNDO
modified neglect of diatomic overlap
mo
month (unit)
MO
molecular orbital
mol
mole (unit)
mol.
molecule, molecular
m.p.
melting point
mph
miles per hour (unit)
mRNA
messenger RNA
MSH
melanocyte-stimulating hormone
Mx
maxwell (unit)

N

Full Term
Abbreviation
NAD
nicotinamide adenine dinucleotide
NADP
nicotinamide adenine dinucleotide phosphate
NDDO
neglect of diatomic differential overlap
neg.
negative(ly)
NMN
nicotinamide mononucleotide
NMR
nuclear magnetic resonance
NNDO
neglect of nonbonded differential overlap
no.
number
NQR
nuclear quadruple resonance

O

Full Term
Abbreviation
obsd.
observed
Oe
oersted (unit)
O
ohm (unit)
ORD
optical rotatory dispersion
org.
organic
oxidn.
oxidation
oz
ounce

P

Full Term
Abbreviation
P
poise (unit)
Pa
pascal (unit)
p.d.
potential difference
Ph
phenyl
phys.
physical(ly)
PMO
perturbational molecular orbital
PNDO
partial neglect of differential overlap
polymd.
polymerized
polymg.
polymerizing
polymn.
polymerization
pos.
positive(ly)
powd.
powdered
ppb
parts per billion (unit)
ppm
parts per million (unit)
PPP
Pariser-Parr-Pople
ppt.
precipitate
pptd.
precipitated
pptg.
precipitating
pptn.
precipitation
Pr
propyl (normal)
prep.
prepare
prepd.
prepared
prepg.
preparing
prepn.
preparation
prodn.
production
psi
pounds per square inch (unit)
psia
pounds per square inch absolute (unit)
psig
pounds per square inch gage (unit)
pt
pint (unit)
purifn.
purification

Q

Full Term
Abbreviation
qt
quart (unit)
qual.
qualitative(ly)
quant.
quantitative(ly)

R

Full Term
Abbreviation
R
roentgen (unit)
redn.
reduction
ref.
reference
rem
roentgen equivalent man (unit)
rep
roentgen equivalent physical (unit)
reprodn.
reproduction
resoln.
resolution
resp.
respective(ly)
RHEED
reflection high energy electron diffraction
RHF
restricted Hartree-Fock
RIA
radioimmunoassay
RNA
ribonucleic acid
RNase
ribonuclease
RPA
random phase approximation
rRNA
ribosomal RNA
rpm
revolutions per minute (unit)
RQ
respiratory quotient

S

Full Term
Abbreviation
s
second (unit)
S
siemens (unit)
sapon.
saponification
sapond.
saponified
sapong.
saponifying
sat.
saturate
satd.
saturated
satg.
saturating
satn.
saturation
s.c.
subcutaneous(ly)
SCE
saturated calomel electrode
SCF
self-consistent field
SEM
scanning electron microscopy
sep.
separate(ly)
sepd.
separated
sepg.
separating
sepn.
separation
sol.
soluble
soln.
solution
soly.
solubility
sp. gr.
specific gravity
sp. vol.
specific volume
sp. wt.
specific weight
sr
steradian (unit)
St
stokes (unit)
std.
standard
STO
Slater-type orbital
sym.
symmetric(al)(ly)

T

Full Term
Abbreviation
T
tesla (unit)
tbs
tablespoon (unit)
TEAE-cellulose
triethylaminoethyl cellulose
tech.
technical(ly)
temp.
temperature
theor.
theoretical(ly)
thermodn.
thermodynamic(s)
THF
tetrahydrofuran
titrn.
titration
tRNA
transfer RNA
TSH
thyroid-stimulating hormone
tsp
teaspoon (unit)

U

Full Term
Abbreviation
UDP
uridine 5'-diphosphate
UHF
unrestricted Hartree-Fock
UMP
uridine 5'-monophosphate
UPS
UV photoelectron spectroscopy
USP
United States Pharmacopeia
UTP
uridine 5'-triphosphate
UV
ultraviolet

V

Full Term
Abbreviation
V
volt (unit)
vol.
volume (not volatile)

W

Full Term
Abbreviation
W
watt (unit)
Wb
weber (unit)
wk
week (unit)
wt.
weight

X

Full Term
Abbreviation
XPS
x-ray photoelectron spectroscopy

Y

Full Term
Abbreviation
yd
yard (unit)
yr
year (unit)

Z

Full Term
Abbreviation
ZDO
zero differential overlap

From CAS Standard Abbreviations and Acronyms.