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 |