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 |
| 2-(prop-2-enylamino)acetic acid,hydrochloride
|
C5H10ClNO2
|
Molecular Weight:151.59100
Density:N/A
Boiling Point:256.3ºC at 760mmHg
Melting Point:N/A
|
3182-78-3
|
| n-acetyl-2-(4-fluoro-phenyl)-d-glycine
|
C10H10FNO3
|
Molecular Weight:211.19000
Density:1.313g/cm3
Boiling Point:439.2ºC at 760 mmHg
Melting Point:N/A
|
136814-99-8
|
| methyl n-butylsulfonyl-l-p-hydroxyphenylalanine
|
C14H21NO5S
|
Molecular Weight:315.38500
Density:1.244g/cm3
Boiling Point:485ºC at 760mmHg
Melting Point:N/A
|
142374-01-4
|
| BETA-HOMOALANINE HYDROCHLORIDE
|
C4H10ClNO2
|
Molecular Weight:139.581
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
5959-33-1
|
| 4-Chloro-7-trifluoromethyl-quinoline-3-carbonitrile
|
C11H4ClF3N2
|
Molecular Weight:256.61100
Density:1.5g/cm3
Boiling Point:349.2ºC at 760mmHg
Melting Point:N/A
|
157301-81-0
|
| (R)-5-AMINO-3-HYDROXY-PENTANOICACIDETHYLESTER
|
C7H15NO3
|
Molecular Weight:161.19900
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
182955-76-6
|
| silver(i) perrhenate
|
AgO4Re
|
Molecular Weight:358.07300
Density:7.05 g/mL at 25ºC(lit.)
Boiling Point:N/A
Melting Point:430ºC(lit.)
|
20654-56-2
|
| (1S,2S)-(+)-2-BENZYLOXYCYCLOHEXYL ISOTHIOCYANATE
|
C14H17NOS
|
Molecular Weight:247.35600
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
737000-89-4
|
| DIFLUFENZOPYR SODIUM SALT
|
C15H11F2N4NaO3
|
Molecular Weight:356.25900
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
109293-98-3
|
| Retinyl Propionate
|
C23H34O2
|
Molecular Weight:342.51500
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
7069-42-3
|
| 6-oxo-1,2-dihydro-6h-pyrrolo-[3,2,1-ij]quinoline-5-carboxylic acid
|
C12H9NO3
|
Molecular Weight:215.20500
Density:1.51g/cm3
Boiling Point:403.2ºC at 760 mmHg
Melting Point:N/A
|
40400-68-8
|
| 1-amino-3-phenylmethoxy-propan-2-ol
|
C10H15NO2
|
Molecular Weight:181.23200
Density:1.11g/cm3
Boiling Point:331.9ºC at 760mmHg
Melting Point:N/A
|
90503-15-4
|
| 3,5,7-trimethyl-1h-indole-2-carboxylic acid
|
C12H13NO2
|
Molecular Weight:203.23700
Density:1.245g/cm3
Boiling Point:416ºC at 760 mmHg
Melting Point:N/A
|
876715-82-1
|
| Z-Val-Glu-Ile-Asp-AFC
|
C38H44F3N5O12
|
Molecular Weight:819.78
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
219138-06-4
|
| BETA-AMYLOID (32-35)
|
C21H40N4O7S
|
Molecular Weight:492.63000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
151151-30-3
|
| octa-3,5-diyne-1,8-diol
|
C8H10O2
|
Molecular Weight:138.16400
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
15808-23-8
|
| 2,5-dimethylcyclohexanol
|
C8H16O
|
Molecular Weight:128.21200
Density:0.893g/cm3
Boiling Point:182.4ºC at 760mmHg
Melting Point:N/A
|
3809-32-3
|
| TRIPHENYLPHOSPHONIUN CYCLOPENTADIIENIDE
|
C23H19P
|
Molecular Weight:326.37100
Density:1.16g/cm3
Boiling Point:500.5ºC at 760mmHg
Melting Point:>225ºC (dec.)(lit.)
|
29473-30-1
|
| 2-bromohexanoyl bromide
|
C6H10Br2O
|
Molecular Weight:257.95100
Density:1.628 g/mL at 25ºC(lit.)
Boiling Point:85-90ºC12 mm Hg(lit.)
Melting Point:N/A
|
54971-26-5
|
| 3-(3-Methoxyphenyl)-1-propanol
|
C10H14O2
|
Molecular Weight:166.217
Density:1.0±0.1 g/cm3
Boiling Point:283.4±15.0 °C at 760 mmHg
Melting Point:N/A
|
7252-82-6
|
| 7-hexadecyn-1-ol
|
C16H30O
|
Molecular Weight:238.40900
Density:1.1586
Boiling Point:339.2ºC at 760 mmHg
Melting Point:130-132 °C(lit.)
|
822-21-9
|
| YO-01027
|
C26H23F2N3O3
|
Molecular Weight:463.476
Density:1.4±0.1 g/cm3
Boiling Point:801.3±65.0 °C at 760 mmHg
Melting Point:257-259ºC
|
209984-56-5
|
| Butanoic acid,3-oxo-,heptyl ester
|
C11H20O3
|
Molecular Weight:200.27500
Density:0.95 g/cm3
Boiling Point:170ºC / 30mmHg
Melting Point:N/A
|
42598-96-9
|
| 4,7-Dimethylisatin
|
C10H9NO2
|
Molecular Weight:175.18400
Density:1.25g/cm3
Boiling Point:N/A
Melting Point:N/A
|
15540-90-6
|
| Benzene,1-(1,1-dimethylethyl)-4-ethynyl-
|
C12H14
|
Molecular Weight:158.24000
Density:0.877 g/mL at 25 °C(lit.)
Boiling Point:70 °C2 mm Hg(lit.)
Melting Point:N/A
|
772-38-3
|
| cis-7-tetradecenol
|
C14H28O
|
Molecular Weight:212.37200
Density:0.846g/cm3
Boiling Point:305.3ºC at 760 mmHg
Melting Point:N/A
|
40642-43-1
|
| 4-Benzylaminopyridine
|
C12H12N2
|
Molecular Weight:184.23700
Density:1.131g/cm3
Boiling Point:330.8ºC at 760 mmHg
Melting Point:N/A
|
13556-71-3
|
| Silane,[(6-chlorohexyl)oxy]trimethyl-
|
C9H21ClOSi
|
Molecular Weight:208.80100
Density:0.905g/cm3
Boiling Point:215.8ºC at 760mmHg
Melting Point:N/A
|
34714-00-6
|
| 2-phenylbenzyl bromide
|
C13H11Br
|
Molecular Weight:247.13000
Density:1.341g/cm3
Boiling Point:374.7ºC at 760mmHg
Melting Point:N/A
|
19853-09-9
|
| BTA-2
|
C16H16N2S
|
Molecular Weight:268.37700
Density:1.188g/cm3
Boiling Point:428.8ºC at 760mmHg
Melting Point:204-206ºC(lit.)
|
10205-62-6
|
| 4-(Boc-amino)benzyl Alcohol
|
C12H17NO3
|
Molecular Weight:223.268
Density:1.2±0.1 g/cm3
Boiling Point:310.0±25.0 °C at 760 mmHg
Melting Point:N/A
|
144072-29-7
|
| TRAP-5 amide trifluoroacetate salt
|
C30H51N9O6
|
Molecular Weight:633.78300
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
141923-41-3
|
| Fmoc-N-amido-PEG2-alcohol
|
C19H21NO4
|
Molecular Weight:327.37400
Density:1.221g/cm3
Boiling Point:547.8ºC at 760 mmHg
Melting Point:N/A
|
299430-87-8
|
| Amylin (20-29) (human)
|
C43H68N12O16
|
Molecular Weight:1009.07
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
118068-30-7
|
| Amyloid β-Protein (16-20) trifluoroacetate salt
|
C35H52N6O6
|
Molecular Weight:652.82
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
153247-40-6
|
| ethyl 2-amino-4-ethyl-5-methylthiophene-3-carboxylate
|
C10H15NO2S
|
Molecular Weight:213.29700
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
82546-91-6
|
| Dodecyl(triethoxy)silane
|
C18H40O3Si
|
Molecular Weight:332.594
Density:0.9±0.1 g/cm3
Boiling Point:265.4±8.0 °C at 760 mmHg
Melting Point:<0ºC
|
18536-91-9
|
| octane-1,8-diylbis(chlorodimethylsilane)
|
C12H28Cl2Si2
|
Molecular Weight:299.428
Density:0.9±0.1 g/cm3
Boiling Point:314.3±25.0 °C at 760 mmHg
Melting Point:N/A
|
5089-28-1
|
| N,N,N',N',1-Pentamethylsilanediamine
|
C5H16N2Si
|
Molecular Weight:132.279
Density:0.798 g/mL at 20ºC(lit.)
Boiling Point:89.7±9.0 °C at 760 mmHg
Melting Point:<0ºC
|
22705-33-5
|
| Trichloro(2-phenylethyl)silane
|
C8H9Cl3Si
|
Molecular Weight:239.602
Density:1.2±0.1 g/cm3
Boiling Point:249.9±19.0 °C at 760 mmHg
Melting Point:N/A
|
940-41-0
|
| 1,5-dichlorohexamethyltrisiloxane
|
C6H18Cl2O2Si3
|
Molecular Weight:277.368
Density:1.0±0.1 g/cm3
Boiling Point:184.0±0.0 °C at 760 mmHg
Melting Point:-53 °C
|
3582-71-6
|
| Tetrakis(trimethylsilyl) orthosilicate
|
C12H36O4Si5
|
Molecular Weight:384.839
Density:0.9±0.1 g/cm3
Boiling Point:284.4±23.0 °C at 760 mmHg
Melting Point:-60ºC
|
3555-47-3
|
| pentamethylcyclopentasiloxane
|
C5H20O5Si5
|
Molecular Weight:300.637
Density:0.992 g/mL at 25ºC(lit.)
Boiling Point:169.0±0.0 °C at 760 mmHg
Melting Point:-108ºC
|
6166-86-5
|
| 1-trimethylsilyl-1,2,4-triazole
|
C5H11N3Si
|
Molecular Weight:141.24600
Density:0.989 g/mL at 25 °C(lit.)
Boiling Point:74 °C12 mm Hg(lit.)
Melting Point:N/A
|
18293-54-4
|
| 3-[Diethoxy(methyl)silyl]propyl methacrylate
|
C12H24O4Si
|
Molecular Weight:260.402
Density:1.0±0.1 g/cm3
Boiling Point:294.2±23.0 °C at 760 mmHg
Melting Point:<0ºC
|
65100-04-1
|
| bis(chloromethyl)methylchlorosilane
|
C3H7Cl3Si
|
Molecular Weight:177.53200
Density:1.08 g/cm3
Boiling Point:172-3ºC
Melting Point:N/A
|
18171-56-7
|
| 3-cyanopropyltriclorosilane
|
C4H6Cl3NSi
|
Molecular Weight:202.542
Density:1.3±0.1 g/cm3
Boiling Point:237.5±0.0 °C at 760 mmHg
Melting Point:N/A
|
1071-27-8
|
| N,N,N',N',1-Pentamethyl-1-phenylsilanediamine
|
C11H20N2Si
|
Molecular Weight:208.375
Density:0.9±0.1 g/cm3
Boiling Point:224.6±13.0 °C at 760 mmHg
Melting Point:N/A
|
33567-83-8
|
| (Trimethylsilyl)methyl methacrylate
|
C8H16O2Si
|
Molecular Weight:172.297
Density:0.9±0.1 g/cm3
Boiling Point:184.2±23.0 °C at 760 mmHg
Melting Point:N/A
|
18269-97-1
|
| Methylenebis(trimethylsilane)
|
C7H20Si2
|
Molecular Weight:160.405
Density:0.7±0.1 g/cm3
Boiling Point:134.1±13.0 °C at 760 mmHg
Melting Point:−71 °C(lit.)
|
2117-28-4
|