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-[4-(dimethylamino)phenyl]cyclohexane-1,3-dione
|
C14H17NO2
|
Molecular Weight:231.29000
Density:N/A
Boiling Point:N/A
Melting Point:191-196 ℃(lit.)
|
144128-70-1
|
| 1,7-DIOXASPIRO[5.5]UNDECANE
|
C9H16O2
|
Molecular Weight:156.22200
Density:1.02 g/mL at 25 °C(lit.)
Boiling Point:193 °C750 mm Hg(lit.)
Melting Point:N/A
|
180-84-7
|
| (5,6-dichloropyridin-3-yl)boronic acid
|
C5H4BCl2NO2
|
Molecular Weight:191.80800
Density:1.56 g/cm3
Boiling Point:364.1ºC at 760 mmHg
Melting Point:N/A
|
1072944-15-0
|
| 5-Methylnicotinonitrile
|
C7H6N2
|
Molecular Weight:118.136
Density:1.1±0.1 g/cm3
Boiling Point:237.2±20.0 °C at 760 mmHg
Melting Point:83-87 °C
|
42885-14-3
|
| 5-Acetyl-2-norbornene
|
C9H12O
|
Molecular Weight:136.191
Density:1.0±0.1 g/cm3
Boiling Point:191.5±0.0 °C at 760 mmHg
Melting Point:N/A
|
5063-03-6
|
| 5-PENTYL-CYCLOHEXANE-1,3-DIONE
|
C11H18O2
|
Molecular Weight:182.25900
Density:0.977g/cm3
Boiling Point:298.919ºC at 760 mmHg
Melting Point:N/A
|
18456-88-7
|
| Acetyl cyclopentane
|
C7H12O
|
Molecular Weight:112.170
Density:0.9±0.1 g/cm3
Boiling Point:160.0±8.0 °C at 760 mmHg
Melting Point:N/A
|
6004-60-0
|
| 4-CHLORO-2-METHYLACETOPHENONE
|
C9H9ClO
|
Molecular Weight:168.62000
Density:1.13 g/cm3
Boiling Point:256.5ºC at 760 mmHg
Melting Point:N/A
|
37074-38-7
|
| methyl 2,3,4,6-tetra-o-acetyl-beta-d-thiogalactopyranoside
|
C15H22O9S
|
Molecular Weight:378.395
Density:1.3±0.1 g/cm3
Boiling Point:440.5±45.0 °C at 760 mmHg
Melting Point:N/A
|
55722-48-0
|
| 2-Methoxy-4-nitrobenzoic acid
|
C8H7NO5
|
Molecular Weight:197.145
Density:1.4±0.1 g/cm3
Boiling Point:390.9±27.0 °C at 760 mmHg
Melting Point:146-148 °C(lit.)
|
2597-56-0
|
| 2'-CHLORO-2,2-DIMETHYLPROPIONANILIDE
|
C11H14ClNO
|
Molecular Weight:211.68800
Density:1.15g/cm3
Boiling Point:344.7ºC at 760 mmHg
Melting Point:75-78ºC(lit.)
|
62662-74-2
|
| METHYL 1-(2-PHENYLETHYL)-2-AZETIDINECARBOXYLATE
|
C13H17NO2
|
Molecular Weight:219.28000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
62664-91-9
|
| Ethanone, 1-(3H-pyrazol-5-yl)- (9CI)
|
C5H6N2O
|
Molecular Weight:110.11400
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
62668-17-1
|
| 1(4H)-Pyridinecarbothioamide,4-ethynyl-3,5-diformyl-
|
C10H8N2O2S
|
Molecular Weight:220.24800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
62827-27-4
|
| [4-(hydroxymethyl)-5-methoxy-6-methylpyridin-3-yl]methanol
|
C9H13NO3
|
Molecular Weight:183.20400
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
633-72-7
|
| tris[(1-methyl-1-phenylethyl)phenyl] phosphate
|
C15H17O4P
|
Molecular Weight:292.26700
Density:1.274g/cm3
Boiling Point:460.6ºC at 760 mmHg
Melting Point:N/A
|
63302-98-7
|
| 1H-Furo[3,2-e]indazole (9CI)
|
C9H6N2O
|
Molecular Weight:158.15700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
63303-27-5
|
| dipotassium,3-(3-sulfonatophenyl)sulfonylbenzenesulfonate
|
C12H8K2O8S3
|
Molecular Weight:454.57900
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
63316-33-6
|
| 2-(4-Chlorophenyl)propionyl chloride
|
C9H8Cl2O
|
Molecular Weight:203.06500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
63327-24-2
|
| 1-Piperazinecarboxylic acid, 4-(2-chloro-4-pyridinyl)-, 1,1-dimethylethyl ester
|
C14H20ClN3O2
|
Molecular Weight:297.78100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
633283-63-3
|
| 3-(p-Formylphenoxy)-1,2-propanediol
|
C11H12ClNOS
|
Molecular Weight:241.73700
Density:1.278g/cm3
Boiling Point:418.1ºC at 760 mmHg
Melting Point:N/A
|
64049-49-6
|
| (2,3-dipentylphenyl) dihydrogen phosphate
|
C16H27O4P
|
Molecular Weight:314.35700
Density:1.119g/cm3
Boiling Point:456.8ºC at 760 mmHg
Melting Point:N/A
|
64051-39-4
|
| 1,1'-[iminobis(ethyleneiminoethylene)]bis[3-(docosenyl)pyrrolidine-2,5-dione]
|
C60H115N5O4
|
Molecular Weight:970.58600
Density:0.951g/cm3
Boiling Point:945ºC at 760 mmHg
Melting Point:N/A
|
64051-42-9
|
| 1-[2-[[2-[[2-[[2-[3-(docosenyl)-2,5-dioxo-1-pyrrolidinyl]ethyl]amino]ethyl]amino]ethyl]amino]ethyl]-3-(octadecenyl)pyrrolidine-2,5-dione
|
C56H103N5O4
|
Molecular Weight:910.44800
Density:0.967g/cm3
Boiling Point:914.4ºC at 760 mmHg
Melting Point:N/A
|
64051-46-3
|
| acetaldehyde butyl phenethyl acetal
|
C14H22O2
|
Molecular Weight:222.32300
Density:0.948g/cm3
Boiling Point:278.6ºC at 760 mmHg
Melting Point:N/A
|
64577-91-9
|
| 2-Pyridinecarbonyl chloride, 3-methyl- (9CI)
|
C7H6ClNO
|
Molecular Weight:155.58200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
64588-88-1
|
| 2,2'-[(5-methyl-1,3-phenylene)bis(oxymethylene)]bis-Oxirane
|
C13H16O4
|
Molecular Weight:236.26400
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
64593-59-5
|
| 5-BROMO-6-(CHLOROMETHYL)BENZO[D][1,3]DIOXOLE
|
C8H6BrClO2
|
Molecular Weight:249.48900
Density:1.726g/cm3
Boiling Point:311.6ºC at 760 mmHg
Melting Point:N/A
|
64603-67-4
|
| Pyrido[2,3-d]pyrimidine-6-carboxylic acid, 2-amino-1,5-dihydro-5-oxo- (9CI)
|
C8H6N4O3
|
Molecular Weight:206.15800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
65897-57-6
|
| 1,2-bis(ethenyl)benzene,2,2-bis(2-methylprop-2-enoyloxymethyl)butyl 2-methylprop-2-enoate,1-(2-ethenylphenyl)-N,N-dimethylmethanamine
|
C39H51NO6
|
Molecular Weight:629.82500
Density:N/A
Boiling Point:422.1ºC at 760 mmHg
Melting Point:N/A
|
65899-89-0
|
| 1,2-bis(ethenyl)benzene,1-(2-ethenylphenyl)-N,N-dimethylmethanamine,1-(2-ethenylphenyl)-N,N-dimethylmethanamine oxide
|
C32H40N2O
|
Molecular Weight:468.67300
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
65899-90-3
|
| 4-(ethylamino)phenol
|
C8H11NO
|
Molecular Weight:137.17900
Density:1.107g/cm3
Boiling Point:275.1ºC at 760mmHg
Melting Point:N/A
|
659-34-7
|
| 5-acetylpyridine-3-carboxylic acid
|
C8H7NO3
|
Molecular Weight:165.14600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
65907-12-2
|
| 5,6-Dichloro-1,3-diethyl-2-(2-phenylimino ethylidene) benzimidazoline
|
C19H19Cl2N3
|
Molecular Weight:360.28000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
65907-67-7
|
| METHYL-[1,2,4]TRIAZIN-3-YL-AMINE
|
C4H6N4
|
Molecular Weight:110.11700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
65915-07-3
|
| ALANINE, N-(2-CHLOROPHENYL)-2-METHYL-
|
C10H12ClNO2
|
Molecular Weight:213.66100
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
65937-39-5
|
| Kondensationsprodukte von mehrwertigen aliphatischen Alkoholen oder Kohlehydraten oder 1,2-Ethylendiamin mit Ethylenoxid und/oder Propylenoxid
|
C7H16O4
|
Molecular Weight:164.20000
Density:N/A
Boiling Point:197.5ºC at 760mmHg
Melting Point:N/A
|
67462-10-6
|
| Dipentaerythritol hexastearat
|
C118H226O13
|
Molecular Weight:1853.05000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
70969-57-2
|
| diisobutyl hexahydrophthalate
|
C16H28O4
|
Molecular Weight:284.39100
Density:1.01g/cm3
Boiling Point:349.7ºC at 760 mmHg
Melting Point:N/A
|
70969-58-3
|
| dodecane-1-thiol,2-methylidenebutanoic acid,methyl 2-methylprop-2-enoate,2-methylprop-2-enoic acid,prop-2-enoic acid
|
C29H52O8S
|
Molecular Weight:560.78300
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
70969-62-9
|
| 1-(3-amino-5-bromo-2-hydroxyphenyl)ethanone
|
C8H8BrNO2
|
Molecular Weight:230.05900
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
70977-85-4
|
| formate
|
CHO2-
|
Molecular Weight:45.01740
Density:N/A
Boiling Point:100.6ºC at 760 mmHg
Melting Point:N/A
|
71-47-6
|
| 2-[[4-[bis[2-(acetyloxy)ethyl]amino]-2-methylphenyl]azo]benzothiazol-6-yl thiocyanate
|
C23H23N5O4S2
|
Molecular Weight:497.59000
Density:1.33g/cm3
Boiling Point:661.8ºC at 760 mmHg
Melting Point:N/A
|
71002-18-1
|
| 3-Bromo-6-quinolinamine
|
C9H7BrN2
|
Molecular Weight:223.069
Density:1.6±0.1 g/cm3
Boiling Point:359.0±22.0 °C at 760 mmHg
Melting Point:154-155ºC
|
7101-96-4
|
| 2-benzofuran-1,3-dione,2,2-bis(hydroxymethyl)butyl 7-methyloctanoate
|
C23H34O7
|
Molecular Weight:422.51200
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
71010-65-6
|
| 2-dodecylphenol,2-ethyloxirane
|
C22H38O2
|
Molecular Weight:334.53600
Density:N/A
Boiling Point:368.3ºC at 760 mmHg
Melting Point:N/A
|
71011-30-8
|
| 5',5'''-[ethylenebis(p-phenyleneazo)]bis[1',2'-dihydro-6'-hydroxy-4'-methyl-2'-oxo-1,3'-bipyridinium] dilactate
|
C42H42N8O10
|
Molecular Weight:818.83000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
71032-99-0
|
| trimethylsilyl dihydrogen phosphate
|
C3H11O4PSi
|
Molecular Weight:170.17600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
7422-66-4
|
| 1H-Indene-2-carbonyl chloride, 2-aminooctahydro- (9CI)
|
C10H16ClNO
|
Molecular Weight:201.69300
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
752923-70-9
|
| (1-Isopropyl-3-piperidinyl)methanol
|
C9H19NO
|
Molecular Weight:157.253
Density:0.9±0.1 g/cm3
Boiling Point:204.7±13.0 °C at 760 mmHg
Melting Point:N/A
|
752970-45-9
|