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)
- 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)
- 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
- Full Term
- Abbreviation
- obsd.
- observed
- Oe
- oersted (unit)
- O
- ohm (unit)
- ORD
- optical rotatory dispersion
- org.
- organic
- oxidn.
- oxidation
- oz
- ounce
- 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
- Full Term
- Abbreviation
- qt
- quart (unit)
- qual.
- qualitative(ly)
- quant.
- quantitative(ly)
- 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
- 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)
- 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)
- 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
- Full Term
- Abbreviation
- V
- volt (unit)
- vol.
- volume (not volatile)
- Full Term
- Abbreviation
- W
- watt (unit)
- Wb
- weber (unit)
- wk
- week (unit)
- wt.
- weight
- Full Term
- Abbreviation
- XPS
- x-ray photoelectron spectroscopy
- Full Term
- Abbreviation
- yd
- yard (unit)
- yr
- year (unit)
- Full Term
- Abbreviation
- ZDO
- zero differential overlap