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 |
4,6-Dichloro-2-(pyridin-2-yl)pyrimidine |
C9H5Cl2N3 |
Molecular Weight:226.062 Density:1.4±0.1 g/cm3 Boiling Point:254.5±22.0 °C at 760 mmHg Melting Point:N/A |
10235-65-1 |
tert-butyl 1-oxa-4,9-diazaspiro[5.5]undecane-4-carboxylate |
C13H24N2O3 |
Molecular Weight:256.34100 Density:1.11 Boiling Point:365.039ºC at 760 mmHg Melting Point:N/A |
1023595-11-0 |
N-(2,4-Dimethoxybenzyl)-N-methylamine |
C10H15NO2 |
Molecular Weight:181.232 Density:1.0±0.1 g/cm3 Boiling Point:262.1±25.0 °C at 760 mmHg Melting Point:N/A |
102503-23-1 |
1-(3-Aminopropyl)pyridin-2(1H)-one |
C8H12N2O |
Molecular Weight:152.19400 Density:1.099 Boiling Point:346ºC at 760 mmHg Melting Point:N/A |
102675-58-1 |
DIETHYL2-(TERT-BUTOXYCARBONYLAMINO)MALONATE |
C12H21NO6 |
Molecular Weight:275.29800 Density:1.079g/mLat25ºC(lit.) Boiling Point:218ºC(lit.) Melting Point:N/A |
102831-44-7 |
(o-Nitrophenyl)cyclopropane |
C9H9NO2 |
Molecular Weight:163.173 Density:1.3±0.1 g/cm3 Boiling Point:250.4±19.0 °C at 760 mmHg Melting Point:N/A |
10292-65-6 |
Ethyl 3-(pyridin-2-ylamino)propanoate |
C10H14N2O2 |
Molecular Weight:194.230 Density:1.1±0.1 g/cm3 Boiling Point:337.8±22.0 °C at 760 mmHg Melting Point:48-50°C |
103041-38-9 |
Methyl 2-bromo-5-cyanobenzoate |
C9H6BrNO2 |
Molecular Weight:240.05300 Density:1.6 g/cm3 Boiling Point:307.2ºC at 760 mmHg Melting Point:N/A |
1031927-03-3 |
(3S,4R)-1-tert-Butyl-4-(2,4-difluorophenyl)pyrrolidine-3-carboxylic acid |
C15H19F2NO2 |
Molecular Weight:283.31400 Density:N/A Boiling Point:N/A Melting Point:N/A |
455957-94-5 |
1-(Diphenylmethyl)-3-fluoroazetidine |
C16H16FN |
Molecular Weight:241.303 Density:1.1±0.1 g/cm3 Boiling Point:315.6±42.0 °C at 760 mmHg Melting Point:N/A |
617718-45-3 |
1-Phenyl-1,4-diazepane |
C11H16N2 |
Molecular Weight:176.258 Density:1.0±0.1 g/cm3 Boiling Point:300.1±25.0 °C at 760 mmHg Melting Point:N/A |
61903-27-3 |
2-Chloro-1,4-dinitrobenzene |
C6H3ClN2O4 |
Molecular Weight:202.552 Density:1.6±0.1 g/cm3 Boiling Point:320.1±22.0 °C at 760 mmHg Melting Point:N/A |
619-16-9 |
4-METHOXY-1-METHYL-1H-INDOLE-3-CARBALDEHYDE |
C11H11NO2 |
Molecular Weight:189.21100 Density:1.144g/cm3 Boiling Point:357.855ºC at 760 mmHg Melting Point:N/A |
620175-74-8 |
Ethyl 2-benzylidene-3-oxobutanoate |
C13H14O3 |
Molecular Weight:218.249 Density:1.1±0.1 g/cm3 Boiling Point:296.0±0.0 °C at 760 mmHg Melting Point:N/A |
620-80-4 |
3-methyl-5,6,7,8-tetrahydro-1,6-naphthyridine |
C9H12N2 |
Molecular Weight:148.205 Density:1.0±0.1 g/cm3 Boiling Point:266.2±35.0 °C at 760 mmHg Melting Point:N/A |
624734-27-6 |
2,4,8-Trichloroquinazoline |
C8H3Cl3N2 |
Molecular Weight:233.482 Density:1.6±0.1 g/cm3 Boiling Point:309.1±24.0 °C at 760 mmHg Melting Point:N/A |
62484-29-1 |
3-Amino-3-methylbutanoic acid |
C5H11NO2 |
Molecular Weight:117.146 Density:1.1±0.1 g/cm3 Boiling Point:220.7±23.0 °C at 760 mmHg Melting Point:232-233ºC |
625-05-8 |
4A,5,8,8a-Tetrahydro-[1,4]naphthoquinone |
C10H10O2 |
Molecular Weight:162.18500 Density:1.175g/cm3 Boiling Point:295.1ºC at 760mmHg Melting Point:N/A |
6271-40-5 |
2,6-Dichloro-4-methyl-3-pyridinecarboxylic Acid |
C7H5Cl2NO2 |
Molecular Weight:206.026 Density:1.5±0.1 g/cm3 Boiling Point:370.1±37.0 °C at 760 mmHg Melting Point:N/A |
62774-90-7 |
1,3-Dichloro-2-iodo-5-nitrobenzene |
C6H2Cl2INO2 |
Molecular Weight:317.89600 Density:2.158g/cm3 Boiling Point:335.5ºC at 760 mmHg Melting Point:153ºC |
62778-19-2 |
4-Amino-2-thiophenecarboxylic acid hydrochloride |
C5H6ClNO2S |
Molecular Weight:179.62500 Density:N/A Boiling Point:435.8ºC at 760 mmHg Melting Point:N/A |
89499-33-2 |
4-Amino-5-bromo-2-thiophenecarboxylic acid |
C5H4BrNO2S |
Molecular Weight:222.060 Density:2.0±0.1 g/cm3 Boiling Point:439.3±45.0 °C at 760 mmHg Melting Point:N/A |
89499-42-3 |
TERT-BUTYL4-FORMYL-1H-IMIDAZOLE-1-CARBOXYLATE |
C9H12N2O3 |
Molecular Weight:196.20300 Density:1.166g/cm3 Boiling Point:318.307ºC at 760 mmHg Melting Point:N/A |
89525-40-6 |
2-CHLORO-6-METHYL-PYRIMIDINE-4-CARBOXYLIC ACID |
C6H5ClN2O2 |
Molecular Weight:172.56900 Density:1.48g/cm3 Boiling Point:378.804ºC at 760 mmHg Melting Point:182 °C |
89581-58-8 |
2-CHLORO-5-(3-(TRIFLUOROMETHYL)BENZAMIDO)BENZOIC ACID |
C15H9ClF3NO3 |
Molecular Weight:343.685 Density:1.5±0.1 g/cm3 Boiling Point:385.6±42.0 °C at 760 mmHg Melting Point:N/A |
896160-35-3 |
3,4-Dimethylthiophene-2-carboxylic acid |
C7H8O2S |
Molecular Weight:156.20200 Density:1.26g/cm3 Boiling Point:289.916ºC at 760 mmHg Melting Point:N/A |
89639-74-7 |
(4-Chloro-3-methoxyphenyl)boronic acid |
C7H8BClO3 |
Molecular Weight:186.40100 Density:1.325g/cm3 Boiling Point:341.651ºC at 760 mmHg Melting Point:N/A |
89694-47-3 |
Ethyl 6-(pyrrolidin-1-yl)nicotinate |
C12H16N2O2 |
Molecular Weight:220.26800 Density:1.149 Boiling Point:N/A Melting Point:N/A |
897399-74-5 |
Amino(5-methyl-2-thienyl)acetic acid |
C7H9NO2S |
Molecular Weight:171.217 Density:1.3±0.1 g/cm3 Boiling Point:317.6±42.0 °C at 760 mmHg Melting Point:N/A |
89776-66-9 |
2-(4-(3,4-Dichlorophenyl)thiazol-2-yl)acetic acid |
C11H7Cl2NO2S |
Molecular Weight:288.15000 Density:N/A Boiling Point:N/A Melting Point:N/A |
898390-41-5 |
2-(4-Fluorophenyl)-5-[(5-iodo-2-Methylphenyl)methyl]thiophene |
C18H14FIS |
Molecular Weight:408.272 Density:1.5±0.1 g/cm3 Boiling Point:450.2±45.0 °C at 760 mmHg Melting Point:107-110°C |
898566-17-1 |
2-quinoxalinol, 7-nitro- |
C8H5N3O3 |
Molecular Weight:191.144 Density:1.6±0.1 g/cm3 Boiling Point:468.6±40.0 °C at 760 mmHg Melting Point:275°C |
89898-96-4 |
7-HYDROXY-5-METHYLPYRAZOLO[1,5-A]PYRIMIDINE-3-CARBONITRILE |
C8H6N4O |
Molecular Weight:174.15900 Density:N/A Boiling Point:N/A Melting Point:N/A |
89939-60-6 |
5-Bromo-2-(difluoromethoxy)-pyridine |
C6H4BrF2NO |
Molecular Weight:224.00300 Density:1.67g/cm3 Boiling Point:193.5ºC at 760 mmHg Melting Point:N/A |
899452-26-7 |
SALOR-INTL480983-1EA |
C8H8ClNO2 |
Molecular Weight:185.60800 Density:1.288g/cm3 Boiling Point:284.5ºC at 760 mmHg Melting Point:N/A |
89978-93-8 |
tert-Butyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-8-azabicyclo[3.2.1]oct-3-ene-8-carboxylate |
C18H30BNO4 |
Molecular Weight:335.24600 Density:1.08 Boiling Point:378.2ºC at 760 mmHg Melting Point:N/A |
900503-08-4 |
POTASSIUMTRIFLUORO(4-METHOXYBENZYL)BORATE |
C8H9BF3KO |
Molecular Weight:228.06100 Density:N/A Boiling Point:N/A Melting Point:N/A |
900810-91-5 |
4-CHLORO-5-FLUORO-2,3-DIHYDRO-1H-INDOLE |
C8H7ClFN |
Molecular Weight:171.59900 Density:1.312g/cm3 Boiling Point:259.5ºC at 760 mmHg Melting Point:N/A |
903551-32-6 |
Benzofuran-7-carboxylic acid |
C9H6O3 |
Molecular Weight:162.14200 Density:1.364g/cm3 Boiling Point:325.559ºC at 760 mmHg Melting Point:N/A |
90484-22-3 |
6-Chloroisoindolin-5-amine |
C8H9ClN2 |
Molecular Weight:168.62300 Density:1.309g/cm3 Boiling Point:301.3ºC at 760 mmHg Melting Point:N/A |
905273-33-8 |
5,7-Dihydro-2-(trifluoromethyl)-6H-pyrrolo[3,4-d]pyrimidine-6-carboxylic acid 1,1-dimethylethyl ester |
C12H14F3N3O2 |
Molecular Weight:289.25400 Density:1.334g/cm3 Boiling Point:301.8ºC at 760 mmHg Melting Point:N/A |
905274-03-5 |
4'-TERT-BUTYL-2,6-DIMETHYLBIPHENYL-4-OL |
C18H22O |
Molecular Weight:254.36700 Density:1.007 Boiling Point:342.9ºC at 760 mmHg Melting Point:N/A |
906101-33-5 |
3-BROMO-4-ISOPROPYLPYRIDINE |
C8H10BrN |
Molecular Weight:200.07600 Density:N/A Boiling Point:N/A Melting Point:N/A |
90731-96-7 |
3-(1H-IMIDAZOLE-2-YL)PIPERIDINE |
C8H13N3 |
Molecular Weight:151.20900 Density:1.094g/cm3 Boiling Point:375.9ºC at 760 mmHg Melting Point:N/A |
90747-55-0 |
Oxazol-2-ylmethanamine xhydrochloride |
C4H7ClN2O |
Molecular Weight:134.56400 Density:N/A Boiling Point:N/A Melting Point:N/A |
907544-38-1 |
5-Methoxyisoquinoline |
C10H9NO |
Molecular Weight:159.185 Density:1.1±0.1 g/cm3 Boiling Point:295.6±13.0 °C at 760 mmHg Melting Point:N/A |
90806-58-9 |
(S)-(5,6,7,8-Tetrahydroindolizin-8-yl)methanamine |
C9H14N2 |
Molecular Weight:150.22100 Density:1.175g/cm3 Boiling Point:280.989ºC at 760 mmHg Melting Point:N/A |
908103-37-7 |
1-Amino-2-pyrrolidinone hydrochloride (1:1) |
C4H9ClN2O |
Molecular Weight:136.580 Density:N/A Boiling Point:91.1ºC Melting Point:91.1°C |
20386-22-5 |
1-BENZYL-4-METHANESULFONYL-PIPERAZINE |
C12H18N2O2S |
Molecular Weight:254.34900 Density:1.25g/cm3 Boiling Point:374.5ºC at 760 mmHg Melting Point:158 °C |
118546-61-5 |
1-Chloro-2-iodo-4-nitrobenzene |
C6H3ClINO2 |
Molecular Weight:283.451 Density:2.1±0.1 g/cm3 Boiling Point:315.7±22.0 °C at 760 mmHg Melting Point:N/A |
74534-15-9 |