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-(TRIFLUOROMETHYL)PYRID-2-YL]-1,2,3,6-TETRAHYDROPYRIDINE
|
C11H11F3N2
|
Molecular Weight:228.21400
Density:1.235g/cm3
Boiling Point:290.8ºC at 760 mmHg
Melting Point:N/A
|
335267-11-3
|
| 8-(TRIFLUOROMETHYL)-1-NAPHTHOL
|
C11H7F3O
|
Molecular Weight:212.16800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33533-47-0
|
| N-benzyl-2-(4-bromophenyl)acetamide
|
C15H14BrNO
|
Molecular Weight:304.18200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
335398-50-0
|
| 1H-Imidazole-2-carboxaldehyde, 4-nitro- (9CI)
|
C4H3N3O3
|
Molecular Weight:141.08500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33543-81-6
|
| N-(4-TERT-BUTYL-PHENYL)-6-CHLORO-PYRIMIDINE-2,4-DIAMINE
|
C14H17ClN4
|
Molecular Weight:276.76500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
335444-26-3
|
| MEA-BENZOATE
|
C9H11NO2
|
Molecular Weight:165.18900
Density:1.119g/cm3
Boiling Point:271.8ºC at 760mmHg
Melting Point:N/A
|
33545-23-2
|
| 4-ETHOXY-BENZYL-HYDRAZINE
|
C9H14N2O
|
Molecular Weight:166.22000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33556-42-2
|
| 2-chloro-5-(2-ethoxyethenyl)pyrimidin-4-amine
|
C8H10ClN3O
|
Molecular Weight:199.63700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
335654-05-2
|
| 2-methylsulfanyl-4,5,6,7-tetrahydro-1H-1,3-diazepine
|
C6H12N2S
|
Molecular Weight:144.23800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3358-41-6
|
| 1-METHANESULFONYL-4-PHENYLETHYNYL-BENZENE
|
C15H12O2S
|
Molecular Weight:256.32000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33592-56-2
|
| 2-azanylethanol
|
C2H7NO
|
Molecular Weight:62.07650
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33598-78-6
|
| 1-N,4-N-bis(3-chlorophenyl)-3,6-dimethyl-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C18H16Cl2N6O2
|
Molecular Weight:419.26500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-71-4
|
| 3,6-dimethyl-1-N,4-N-bis(2-methylphenyl)-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C20H22N6O2
|
Molecular Weight:378.42800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-72-5
|
| 3,6-dimethyl-1-N,4-N-bis(4-methylphenyl)-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C20H22N6O2
|
Molecular Weight:378.42800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-73-6
|
| 1-N,4-N-bis(2-methoxyphenyl)-3,6-dimethyl-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C20H22N6O4
|
Molecular Weight:410.42600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-74-7
|
| 1-N,4-N-bis(3-methoxyphenyl)-3,6-dimethyl-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C20H22N6O4
|
Molecular Weight:410.42600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-75-8
|
| 1-N,4-N-bis(3,5-dichlorophenyl)-3,6-dimethyl-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C18H14Cl4N6O2
|
Molecular Weight:488.15500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-77-0
|
| 1-N,4-N-bis(3,5-dimethylphenyl)-3,6-dimethyl-1,2,4,5-tetrazine-1,4-dicarboxamide
|
C22H26N6O2
|
Molecular Weight:406.48100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
336620-78-1
|
| trimethoxy-[3-(7-oxabicyclo[4.1.0]heptan-4-yl)propyl]silane
|
C12H24O4Si
|
Molecular Weight:260.40200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33684-79-6
|
| butyl-hydroxy-oxotin,hydrate
|
C4H12O3Sn
|
Molecular Weight:226.83700
Density:N/A
Boiling Point:>350ºC
Melting Point:N/A
|
336879-56-2
|
| 1,2-CYCLOBUTANEDIONE
|
C4H4O2
|
Molecular Weight:84.07340
Density:1.314g/cm3
Boiling Point:155.7ºC at 760mmHg
Melting Point:65ºC
|
33689-28-0
|
| decahydrotetramethyl azulene-5-methanol
|
C15H28O
|
Molecular Weight:224.38200
Density:0.913g/cm3
Boiling Point:301.4ºC at 760mmHg
Melting Point:N/A
|
3526-75-8
|
| 4-BENZYL-1H-PYRROLE-3-CARBOXYLIC ACID ETHYL ESTER
|
C14H15NO2
|
Molecular Weight:229.27400
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
352616-19-4
|
| 6-METHYLTHIENO[3,2-D]PYRIMIDINE-2,4-DIOL
|
C7H6N2O2S
|
Molecular Weight:182.20000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
35265-80-6
|
| 7-propan-2-yl-3,4-dihydro-2H-naphthalen-1-one
|
C13H16O
|
Molecular Weight:188.26600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
35338-72-8
|
| Styrene,allyl alcohol,maleic anhydride polymer
|
C15H16O4
|
Molecular Weight:260.28500
Density:N/A
Boiling Point:145.2ºC at 760mmHg
Melting Point:N/A
|
35381-44-3
|
| Ethyl4h-furo[3,2-b]pyrrole-5-carboxylate
|
C9H9NO3
|
Molecular Weight:179.17300
Density:1.288 g/cm3
Boiling Point:298.307ºC at 760 mmHg
Melting Point:N/A
|
35405-94-8
|
| (R)-(-)-4-METHYL-2-PENTANOL
|
C26H24FeO2P
|
Molecular Weight:455.28600
Density:N/A
Boiling Point:N/A
Melting Point:151-156ºC
|
36548-61-5
|
| 2-acetamido-5-bromothiophene-3-carboxamide
|
C7H7BrN2O2S
|
Molecular Weight:263.11200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
412914-59-1
|
| N-(6-Hydroxypyridin-3-yl)acetamide
|
C7H8N2O2
|
Molecular Weight:152.151
Density:1.2±0.1 g/cm3
Boiling Point:445.1±45.0 °C at 760 mmHg
Melting Point:N/A
|
41292-43-7
|
| 1H-Benzimidazol-5-ol,2-methyl-(9CI)
|
C8H9BrN2O
|
Molecular Weight:229.074
Density:1.349
Boiling Point:432.2±18.0°C at 760 mmHg
Melting Point:N/A
|
41292-66-4
|
| flucetosulfuron
|
C18H22FN5O8S
|
Molecular Weight:487.45900
Density:1.417g/cm3
Boiling Point:N/A
Melting Point:N/A
|
412928-75-7
|
| decanedioic acid,dimethyl benzene-1,4-dicarboxylate,ethane-1,2-diol
|
C22H34O10
|
Molecular Weight:458.49900
Density:N/A
Boiling Point:374.3ºC at 760mmHg
Melting Point:N/A
|
41315-87-1
|
| 1,2-Cyclopentanediamine
|
C5H12N2
|
Molecular Weight:100.162
Density:1.0±0.1 g/cm3
Boiling Point:165.1±8.0 °C at 760 mmHg
Melting Point:N/A
|
41330-23-8
|
| 4,7-dimethyl-2,3,6,7-tetrahydrocyclopenta[b]pyrazine
|
C9H14N2
|
Molecular Weight:150.22100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
41330-42-1
|
| 2-bromo-6-chlorohexanoyl chloride
|
C6H9BrCl2O
|
Molecular Weight:247.94500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
41339-26-8
|
| 4-(bromomethyl)-2-phenyltriazole
|
C9H8BrN3
|
Molecular Weight:238.08400
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
41425-60-9
|
| 4-chloro-6-(1,3-dihydrobenzimidazol-2-ylidene)cyclohexa-2,4-dien-1-one
|
C13H9ClN2O
|
Molecular Weight:244.67600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
41433-12-9
|
| benzyl 4-chloro-4-oxobutanoate
|
C11H11ClO3
|
Molecular Weight:226.65600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
41437-17-6
|
| isoscutellarein
|
C15H10O6
|
Molecular Weight:286.23600
Density:1.654g/cm3
Boiling Point:592.5ºC at 760 mmHg
Melting Point:247-248 °C
|
41440-05-5
|
| 5-Heptadecyl-1,3-benzenediol
|
C23H40O2
|
Molecular Weight:348.56
Density:1.0±0.1 g/cm3
Boiling Point:478.0±15.0 °C at 760 mmHg
Melting Point:N/A
|
41442-57-3
|
| thieno[2,3-b]pyridin-6-amine
|
C7H6N2S
|
Molecular Weight:150.20100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
41449-28-9
|
| 5-(pyrrolidin-1-ylmethyl)quinolin-8-ol
|
C14H16N2O
|
Molecular Weight:228.29000
Density:1.241g/cm3
Boiling Point:400.8ºC at 760 mmHg
Melting Point:N/A
|
41455-82-7
|
| 2,2'-[(4-Vinylbenzyl)imino]diacetic acid
|
C13H15NO4
|
Molecular Weight:249.262
Density:1.3±0.1 g/cm3
Boiling Point:454.4±40.0 °C at 760 mmHg
Melting Point:N/A
|
46917-20-8
|
| methyl 4-fluoro-1H-indazole-5-carboxylate
|
C9H7FN2O2
|
Molecular Weight:194.16200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
473416-82-9
|
| FLUORINERT FC-40
|
C21F48N2
|
Molecular Weight:1192.16000
Density:1.85 g/mL at 25ºC(lit.)
Boiling Point:158-173ºC
Melting Point:-57ºC
|
51142-49-5
|
| METHYL 2-HYDROXY-6-METHYLPYRIDINE-3-CARBOXYLATE
|
C8H9NO3
|
Molecular Weight:167.16200
Density:1.235g/cm3
Boiling Point:293.4ºC at 760 mmHg
Melting Point:N/A
|
51146-06-6
|
| ethane-1,2-diol,propane-1,2,3-triol
|
C5H14O5
|
Molecular Weight:154.16200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
51158-08-8
|
| (tetrahydrofuran-3-yl)methanethiol
|
C5H10OS
|
Molecular Weight:118.19700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
51171-23-4
|
| Methyl 1-Bromocyclobutanecarboxylate
|
C6H9BrO2
|
Molecular Weight:193.03800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
51175-79-2
|