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 |
| 5-(2-Aminoethyl)-1-benzyl-2-pyrrolidinone
|
C13H18N2O
|
Molecular Weight:218.295
Density:1.1±0.1 g/cm3
Boiling Point:405.8±28.0 °C at 760 mmHg
Melting Point:N/A
|
1253654-23-7
|
| Quinoxaline, 2-chloro-8-methyl- (9CI)
|
C9H7ClN2
|
Molecular Weight:178.61800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
61148-40-1
|
| 2-Bromo-6-(1-piperidinylmethyl)pyridine
|
C11H15BrN2
|
Molecular Weight:255.154
Density:1.4±0.1 g/cm3
Boiling Point:313.6±27.0 °C at 760 mmHg
Melting Point:N/A
|
103923-00-8
|
| 3-(Bromomethyl)-4-chlorobenzonitrile
|
C8H5BrClN
|
Molecular Weight:230.489
Density:1.6±0.1 g/cm3
Boiling Point:295.3±25.0 °C at 760 mmHg
Melting Point:N/A
|
1021871-37-3
|
| 2-Methyl-1H-indol-6-amine
|
C9H10N2
|
Molecular Weight:146.189
Density:1.2±0.1 g/cm3
Boiling Point:357.3±22.0 °C at 760 mmHg
Melting Point:N/A
|
102308-53-2
|
| 1H-Indene-2-carboxylicacid,3-amino-,ethylester(9CI)
|
C12H13NO2
|
Molecular Weight:203.23700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
195067-13-1
|
| 2-tert-Butyl-4-chloro-6-trifluoromethyl-pyrimidine
|
C9H10ClF3N2
|
Molecular Weight:238.63700
Density:1.269g/cm3
Boiling Point:219ºC at 760 mmHg
Melting Point:N/A
|
193611-28-8
|
| 2-Chloro-1-(5-fluoro-2-pyridyl)ethanone
|
C7H5ClFNO
|
Molecular Weight:173.57200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
1104606-44-1
|
| DIMETHYL 3-IODOPHTHALATE
|
C10H9IO4
|
Molecular Weight:320.08100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
102928-38-1
|
| 3-Methylfuro[3,2-b]pyridine-2-carboxylic acid
|
C9H7NO3
|
Molecular Weight:177.15700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
107096-09-3
|
| 4-(5-cyano-7-isopropylbenzo[d]oxazol-2-yl)benzoic acid
|
C18H14N2O3
|
Molecular Weight:306.31500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
1093395-66-4
|
| 1-Ethyl-1H-pyrrole-2-carbaldehyde
|
C7H9NO
|
Molecular Weight:123.152
Density:1.0±0.1 g/cm3
Boiling Point:210.6±13.0 °C at 760 mmHg
Melting Point:N/A
|
2167-14-8
|
| 2-Chloro-4-(trifluoromethyl)-1,3-thiazole
|
C4HClF3NS
|
Molecular Weight:187.571
Density:1.6±0.1 g/cm3
Boiling Point:188.1±50.0 °C at 760 mmHg
Melting Point:N/A
|
228119-52-6
|
| alpha-Methoxytropone
|
C8H8O2
|
Molecular Weight:136.14800
Density:1.08g/cm3
Boiling Point:287ºC at 760 mmHg
Melting Point:132 °C
|
2161-40-2
|
| 2-Bromo-6,7-dihydro-4H-pyrano[4,3-d][1,3]thiazole
|
C6H6BrNOS
|
Molecular Weight:220.087
Density:1.7±0.1 g/cm3
Boiling Point:310.9±32.0 °C at 760 mmHg
Melting Point:N/A
|
1093107-56-2
|
| 3,5-Dichloro-1-methyl-2(1H)-pyrazinone
|
C5H4Cl2N2O
|
Molecular Weight:179.004
Density:1.6±0.1 g/cm3
Boiling Point:225.7±50.0 °C at 760 mmHg
Melting Point:71 °C
|
87486-33-7
|
| 1,1'-Bi(cyclohexyl)-1-carboxylic acid
|
C13H22O2
|
Molecular Weight:210.313
Density:1.1±0.1 g/cm3
Boiling Point:343.0±10.0 °C at 760 mmHg
Melting Point:122-123 °C
|
60263-54-9
|
| tert-butyl 4-(2-ethoxy-2-oxoethyl)-4-hydroxypiperidine-1-carboxylate
|
C14H25NO5
|
Molecular Weight:287.352
Density:1.1±0.1 g/cm3
Boiling Point:375.9±27.0 °C at 760 mmHg
Melting Point:N/A
|
401811-97-0
|
| 7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline
|
C15H18BNO2
|
Molecular Weight:255.120
Density:1.1±0.1 g/cm3
Boiling Point:386.5±15.0 °C at 760 mmHg
Melting Point:N/A
|
851985-81-4
|
| 2-Amino-6-bromoquinoline hydrochloride
|
C9H8BrClN2
|
Molecular Weight:259.530
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
1170935-81-5
|
| N-[(1S)-2-Cyclohexyl-1-(2-pyridinyl)ethyl]-5-methyl-1,3-benzoxazo l-2-amine
|
C21H25N3O
|
Molecular Weight:335.44300
Density:1.16g/cm3
Boiling Point:492.5ºC at 760mmHg
Melting Point:N/A
|
147432-77-7
|
| 3H-1,2-BENZODITHIOL-3-ONE1,1-DIOXIDE
|
C11H24O3Si
|
Molecular Weight:232.39200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
86462-76-2
|
| ((CHLOROMETHYL)PHENYLETHYL)DIMETHYLCHLOROSILANE
|
C10H11Cl
|
Molecular Weight:166.64700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
1794-51-0
|
| ((CHLOROMETHYL)PHENYLETHYL)TRIMETHOXYSILANE
|
C13H16O
|
Molecular Weight:188.26600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
53963-38-5
|
| ((E)-1,2-DIBROMO-VINYL)-BENZENE
|
C10H11Br
|
Molecular Weight:211.09800
Density:1.302g/cm3
Boiling Point:257.5ºC at 760 mmHg
Melting Point:N/A
|
62692-41-5
|
| ((THIOPHEN-2-YL)METHYL)GUANIDINE
|
C6H9N3S
|
Molecular Weight:155.22100
Density:1.371g/cm3
Boiling Point:274.342ºC at 760 mmHg
Melting Point:N/A
|
81882-12-4
|
| (3-fluoro-2-phenylprop-2-enyl)hydrazine
|
C9H11FN2
|
Molecular Weight:166.19500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
843651-70-7
|
| 1-ACETYL-1H-FURO[3',4':4,5]BENZO[1,2-D]IMIDAZOLE-5,7-DIONE
|
C11H6N2O4
|
Molecular Weight:230.17600
Density:1.67g/cm3
Boiling Point:484ºC at 760 mmHg
Melting Point:N/A
|
108451-45-2
|
| 1-ACETYL-2-BUTYL-5-CHLOROINDOLE
|
C14H16ClNO
|
Molecular Weight:249.73600
Density:1.15g/cm3
Boiling Point:358ºC at 760 mmHg
Melting Point:N/A
|
123028-39-7
|
| 1H-Benzimidazole,1-acetyl-2-ethyl-(9CI)
|
C11H12N2O
|
Molecular Weight:188.22600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
83440-29-3
|
| 1-ACETYL-5-BROMO-2,3-DIHYDRO-1H-INDOLE-7-SULFONYLCHLORIDE
|
C10H9BrClNO3S
|
Molecular Weight:338.60500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
30691-46-4
|
| 1H-Indole, 1-acetyl-6-(chloroacetyl)- (9CI)
|
C12H10ClNO2
|
Molecular Weight:235.66600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
92013-04-2
|
| Ethanone, 1-(6-bromo-1H-indazol-1-yl)-
|
C9H7BrN2O
|
Molecular Weight:239.06900
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
651780-33-5
|
| 1-(6-Iodo-1H-indol-1-yl)ethanone
|
C10H8INO
|
Molecular Weight:285.081
Density:1.8±0.1 g/cm3
Boiling Point:343.3±15.0 °C at 760 mmHg
Melting Point:N/A
|
1000342-92-6
|
| 1-ACETYL-6-IODOINDOLINE
|
C10H10INO
|
Molecular Weight:287.09700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
115666-43-8
|
| 1-acetylazetidin-3-one
|
C5H7NO2
|
Molecular Weight:113.11500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
179894-05-4
|
| 1-Amino-1,2,4-triazole
|
C2H4N4
|
Molecular Weight:84.08000
Density:1.599g/cm3
Boiling Point:267.649ºC at 760 mmHg
Melting Point:N/A
|
24994-60-3
|
| 1-amino-2,3,7,8-tetrachlorodibenzo-p-dioxin
|
C12H5Cl4NO2
|
Molecular Weight:336.98600
Density:1.699g/cm3
Boiling Point:464.1ºC at 760 mmHg
Melting Point:N/A
|
62782-13-2
|
| 1-Amino-4-indanol
|
C9H11NO
|
Molecular Weight:149.19000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
479206-20-7
|
| 1-amino-2-methylbutan-2-ol
|
C5H13NO
|
Molecular Weight:103.16300
Density:0.918g/cm3
Boiling Point:186.8ºC at 760 mmHg
Melting Point:N/A
|
51411-49-5
|
| 1-Amino-3-methyl-2-butanol
|
C5H13NO
|
Molecular Weight:103.163
Density:0.9±0.1 g/cm3
Boiling Point:186.8±13.0 °C at 760 mmHg
Melting Point:N/A
|
17687-58-0
|
| 1-ANTHRAQUINONESULFONIC ACID, POTASSIUM SALT
|
C14H7KO5S
|
Molecular Weight:326.36600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
30845-78-4
|
| 2-Iodo-1-(phenylsulfonyl)-1H-pyrrolo[3,2-c]pyridine
|
C13H9IN2O2S
|
Molecular Weight:384.192
Density:1.8±0.1 g/cm3
Boiling Point:543.9±53.0 °C at 760 mmHg
Melting Point:N/A
|
877060-44-1
|
| 1-benzhydryl-3-(4-fluorophenoxy)azetidine
|
C22H20FNO
|
Molecular Weight:333.39900
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
63843-76-5
|
| 1-BENZOYL-4-PHENYLIMIDAZOLE
|
C16H12N2O
|
Molecular Weight:248.27900
Density:1.14g/cm3
Boiling Point:458.9ºC at 760 mmHg
Melting Point:N/A
|
24463-54-5
|
| 1-benzoylazetidine-3-carboxylic acid
|
C11H11NO3
|
Molecular Weight:205.21000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
97639-63-9
|
| 1-Benzyl-1,3-dihydro-2H-benzimidazole-2-one
|
C14H12N2O
|
Molecular Weight:224.25800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
28643-53-0
|
| 1-benzyl-3-(hydroxymethyl)piperidin-4-ol
|
C13H19NO2
|
Molecular Weight:221.29500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
886-46-4
|
| 1-Benzyl-4-trifluoromethyl-pyrrolidine-3-carboxylic acid
|
C13H14F3NO2
|
Molecular Weight:273.25100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
169750-31-6
|
| 1-Benzyl-4-chloro-1H-pyrrolo[3,2-c]pyridine
|
C14H11ClN2
|
Molecular Weight:242.704
Density:1.2±0.1 g/cm3
Boiling Point:434.2±35.0 °C at 760 mmHg
Melting Point:N/A
|
35636-10-3
|