A CAS Registry Number,also referred to as CASRN or CAS Number, is a unique numerical identifier assigned by the Chemical Abstracts Service (CAS) to every chemical substance described in the open scientific literature (currently including all substances described from 1957 through the present, plus some substances from the early or mid 1900s), including organic and inorganiccompounds, minerals, isotopes, alloys and nonstructurable materials (UVCBs, of unknown, variable composition, or biological origin).The registry maintained by CAS is an authoritative collection of disclosed chemical substance information. It currently identifies more than 144 million unique organic and inorganic substances and 67 million protein and DNA sequences,plus additional information about each substance. It is updated with around 15,000 additional new substances daily.(information coming from wikipedia.org)
Name |
Molecular Formula |
Chemical & Physical Properties |
CAS Number |
1,3-Dichloro-2-propanol |
C3H6Cl2O |
Molecular Weight:128.985 Density:1.3±0.1 g/cm3 Boiling Point:174.3±0.0 °C at 760 mmHg Melting Point:-4 °C |
96-23-1 |
Novoldiamine |
C9H22N2 |
Molecular Weight:158.284 Density:0.8±0.1 g/cm3 Boiling Point:200.5±8.0 °C at 760 mmHg Melting Point:N/A |
140-80-7 |
Aminoacetonitrile sulfate (2:1) |
C4H10N4O4S |
Molecular Weight:210.212 Density:N/A Boiling Point:330ºC at 760 mmHg Melting Point:160°C (dec.) |
5466-22-8 |
1,4-dioxane |
C4H8O2 |
Molecular Weight:88.10510 Density:N/A Boiling Point:N/A Melting Point:N/A |
54841-74-6 |
2-Butyl-5-isobutylthiophene |
C12H20S |
Molecular Weight:196.35200 Density:N/A Boiling Point:N/A Melting Point:N/A |
54845-35-1 |
6-(4-oxocyclohexa-2,5-dien-1-ylidene)-1,2-dihydropyridazin-3-one |
C10H8N2O2 |
Molecular Weight:188.18300 Density:N/A Boiling Point:N/A Melting Point:N/A |
54851-73-9 |
6-Chloro-N,N-diethylnicotinamide |
C10H13ClN2O |
Molecular Weight:212.676 Density:1.2±0.1 g/cm3 Boiling Point:354.1±27.0 °C at 760 mmHg Melting Point:N/A |
54864-96-9 |
1H-Imidazole-4-carboxamide,N-2-propynyl-(9CI) |
C7H7N3O |
Molecular Weight:149.15000 Density:N/A Boiling Point:N/A Melting Point:N/A |
548777-17-9 |
N-(2,2-dimethoxyethyl)-1-(4-methoxyphenyl)methanimine |
C12H17NO3 |
Molecular Weight:223.26800 Density:N/A Boiling Point:N/A Melting Point:N/A |
54879-50-4 |
1-(4-chlorophenyl)-N-(2,2-dimethoxyethyl)methanimine |
C11H14ClNO2 |
Molecular Weight:227.68700 Density:N/A Boiling Point:N/A Melting Point:N/A |
54879-73-1 |
2,4-dibromo-N,N-bis(2,4-dibromophenyl)aniline |
C18H9Br6N |
Molecular Weight:718.69500 Density:N/A Boiling Point:N/A Melting Point:N/A |
5489-72-5 |
metahexamide |
C14H21N3O3S |
Molecular Weight:311.40000 Density:1.3g/cm3 Boiling Point:N/A Melting Point:N/A |
565-33-3 |
ethyl N-(3-fluoro-4-morpholin-4-ylphenyl)carbamate |
C13H17FN2O3 |
Molecular Weight:268.28400 Density:N/A Boiling Point:N/A Melting Point:N/A |
565176-83-2 |
rac 1-Oleoyl Glycerol-d5 |
C21H35D5O4 |
Molecular Weight:361.57 Density:1.0±0.1 g/cm3 Boiling Point:483.3±35.0 °C at 760 mmHg Melting Point:N/A |
565183-24-6 |
4-ethyl-2-nitrophenol |
C8H9NO3 |
Molecular Weight:167.16200 Density:1.261g/cm3 Boiling Point:267ºC at 760mmHg Melting Point:N/A |
56520-98-0 |
bis[2-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]ethyl] 3,3'-thiobispropionate |
C38H58O6S |
Molecular Weight:642.92900 Density:1.072g/cm3 Boiling Point:666.5ºC at 760mmHg Melting Point:N/A |
56525-25-8 |
benzene-1,3-dicarboxylic acid,butane-1,4-diol,2,3-dimethylterephthalic acid,hexane-1,6-diol |
C28H40O12 |
Molecular Weight:568.61000 Density:N/A Boiling Point:394.4ºC at 760mmHg Melting Point:N/A |
56529-00-1 |
methazonic acid |
C2H4N2O3 |
Molecular Weight:104.06500 Density:1.453g/cm3 Boiling Point:265.772ºC at 760 mmHg Melting Point:N/A |
5653-21-4 |
2,3-dimethoxy-5-methylbenzoic acid |
C10H12O4 |
Molecular Weight:196.20000 Density:N/A Boiling Point:N/A Melting Point:N/A |
5653-56-5 |
4-methoxy-2-(methoxymethoxy)-1-nitrobenzene |
C9H11NO5 |
Molecular Weight:213.18700 Density:N/A Boiling Point:N/A Melting Point:N/A |
56536-69-7 |
5-BROMO-3-HYDROXYISOINDOLIN-1-ONE |
C8H6BrNO2 |
Molecular Weight:228.04300 Density:N/A Boiling Point:N/A Melting Point:N/A |
573675-39-5 |
2-METHYL-7-[3-(TRIFLUOROMETHYL)PYRIDIN-2-YL]QUINAZOLIN-4-OL |
C15H10F3N3O |
Molecular Weight:305.25500 Density:N/A Boiling Point:N/A Melting Point:N/A |
573675-91-9 |
7-bromo-4-chloro-2-(chloromethyl)quinazoline |
C9H5BrCl2N2 |
Molecular Weight:291.95900 Density:1.761g/cm3 Boiling Point:238.647ºC at 760 mmHg Melting Point:N/A |
573681-19-3 |
(S)-1-CBZ-3-PYRROLIDINECARBOXAMIDE |
C9H10ClF2N |
Molecular Weight:205.63200 Density:N/A Boiling Point:N/A Melting Point:N/A |
573704-57-1 |
4-methoxybutanenitrile |
C5H9NO |
Molecular Weight:99.13110 Density:N/A Boiling Point:N/A Melting Point:N/A |
57371-37-6 |
5-Amino-3-(trifluoromethyl)picolinonitrile |
C7H4F3N3 |
Molecular Weight:187.122 Density:1.5±0.1 g/cm3 Boiling Point:362.2±42.0 °C at 760 mmHg Melting Point:N/A |
573762-62-6 |
4-Chloro-3-iodoaniline |
C6H5ClIN |
Molecular Weight:253.46800 Density:2.016 g/cm3 Boiling Point:322.297ºC at 760 mmHg Melting Point:N/A |
573764-31-5 |
4-AMINO-2-CHLORO-3-METHYL-BENZONITRILE |
C8H7ClN2 |
Molecular Weight:166.60800 Density:1.274 g/cm3 Boiling Point:353.959ºC at 760 mmHg Melting Point:N/A |
573768-09-9 |
2H-Pyran-4-ol, 4-ethynyltetrahydro- (9CI) |
C7H10O2 |
Molecular Weight:126.15300 Density:N/A Boiling Point:N/A Melting Point:N/A |
57385-16-7 |
1,6-dihydropyrrolo[2,3-c]pyridin-2-one |
C7H6N2O |
Molecular Weight:134.13500 Density:N/A Boiling Point:N/A Melting Point:N/A |
58043-01-9 |
calcium 4-[(4-chloro-5-ethyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate |
C19H13CaClN2O6S |
Molecular Weight:472.91200 Density:N/A Boiling Point:N/A Melting Point:N/A |
58067-05-3 |
2-(2-methylpropyl)-1H-pyrrolo[2,3-b]pyridine |
C11H14N2 |
Molecular Weight:174.24200 Density:1.08g/cm3 Boiling Point:313.4ºC at 760 mmHg Melting Point:N/A |
58069-42-4 |
4-Morpholino butanoic acid |
C8H16ClNO3 |
Molecular Weight:209.671 Density:1.126g/cm3 Boiling Point:323.7ºC at 760 mmHg Melting Point:N/A |
5807-09-0 |
(2-ethenylcyclopropyl)methanol |
C6H10O |
Molecular Weight:98.14300 Density:N/A Boiling Point:N/A Melting Point:N/A |
58070-46-5 |
N-benzyl-N'-phenylethane-1,2-diamine |
C15H18N2 |
Molecular Weight:226.31700 Density:N/A Boiling Point:N/A Melting Point:N/A |
58077-34-2 |
trimethyl 4-phosphonocrotonate |
C7H13O5P |
Molecular Weight:208.14900 Density:1.169g/cm3 Boiling Point:282.8ºC at 760mmHg Melting Point:N/A |
86120-40-3 |
5-Amino-2-chlorobenzenesulfonamide |
C6H7ClN2O2S |
Molecular Weight:206.65000 Density:1.558 Boiling Point:454.5ºC at 760mmHg Melting Point:169-171ºC |
2015-19-2 |
4-bromo-n,n-diethylaniline |
C10H14BrN |
Molecular Weight:228.12900 Density:1.291g/cm3 Boiling Point:269-271°C Melting Point:32-33 °C(lit.) |
2052-06-4 |
n-Nonyl triphenylphosphonium bromide |
C27H34BrP |
Molecular Weight:469.43700 Density:1.158 g/cm3 Boiling Point:N/A Melting Point:65-68ºC |
60902-45-6 |
Iodonium, diphenyl-,bromide (1:1) |
C12H10BrI |
Molecular Weight:361.01600 Density:N/A Boiling Point:N/A Melting Point:222.5-227.5 °C(lit.) |
1483-73-4 |
propargyl acrylate |
C6H6O2 |
Molecular Weight:110.11100 Density:0.997 g/mL at 25 °C(lit.) Boiling Point:142-143 °C(lit.) Melting Point:N/A |
10477-47-1 |
2-Nitrothiophenol |
C6H5NO2S |
Molecular Weight:155.174 Density:1.4±0.1 g/cm3 Boiling Point:262.5±23.0 °C at 760 mmHg Melting Point:N/A |
4875-10-9 |
benzyl methyl sulfone |
C8H10O2S |
Molecular Weight:170.22900 Density:1.385g/cm3 Boiling Point:334.81 °C Melting Point:124 °C |
3112-90-1 |
diisopropyl cyanomethylphosphonate |
C8H16NO3P |
Molecular Weight:205.19100 Density:1.039 Boiling Point:108ºC(0.08 torr) Melting Point:N/A |
21658-95-7 |
1-cyclohexyl-3-(2-morpholinoethyl)carbodiimide metho-p-toluenesulfonate |
C21H33N3O4S |
Molecular Weight:423.56900 Density:N/A Boiling Point:N/A Melting Point:115-120ºC |
4641-47-8 |
Aspirin Aluminum |
C18H15AlO9 |
Molecular Weight:402.29 Density:N/A Boiling Point:321.4ºC at 760mmHg Melting Point:N/A |
23413-80-1 |
1,3-Benzenedicarboxylicacid, 5-nitro-, 1-ethyl ester |
C10H9NO6 |
Molecular Weight:239.18200 Density:1.421g/cm3 Boiling Point:425.1ºC at 760 mmHg Melting Point:N/A |
22871-55-2 |
5,6-Dithiadecane |
C8H18S2 |
Molecular Weight:178.359 Density:0.9±0.1 g/cm3 Boiling Point:226.0±0.0 °C at 760 mmHg Melting Point:−94 °C(lit.) |
629-45-8 |
allyl n-propyl ether |
C6H12O |
Molecular Weight:100.15900 Density:0.767 g/mL at 25 °C(lit.) Boiling Point:90-92 °C(lit.) Melting Point:N/A |
1471-03-0 |
Braylin |
C15H14O4 |
Molecular Weight:258.269 Density:1.2±0.1 g/cm3 Boiling Point:441.2±45.0 °C at 760 mmHg Melting Point:N/A |
6054-10-0 |