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 |
| Poly(glycolide-L-(-)-lactide)
|
(C6H8O4)x.(C4H4O4)x
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
30846-39-0
|
| (5E)-2-mercapto-5-[(3-methyl-2-thienyl)methylene]-1,3-thiazol-4(5H)-one
|
C9H7NOS3
|
Molecular Weight:241.35
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
309290-77-5
|
| L-Arginine, polymer with L-lysine
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
31014-78-5
|
| cis-cyclopentane-1,2-diamine dihydrochloride
|
C5H14Cl2N2
|
Molecular Weight:173.08406
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
310872-08-3
|
| STYRENE-ALPHA,BETA-13C2
|
C8H8
|
Molecular Weight:106.17
Density:0.926 g/mL at 25 °C
Boiling Point:50-51 °C25 mm Hg(lit.)
Melting Point:N/A
|
31124-36-4
|
| 3-Methyl-1-(tricyclo[3.3.1.1(3,7)]dec-1-ylcarbonyl)piperidine
|
C17H27NO
|
Molecular Weight:261.40238
Density:N/A
Boiling Point:N/A
Melting Point:64.5-65.9℃
|
313688-11-8
|
| Triethanolamine 2,5-bis[(1,3-dioxobutyl)amino]benzenesulfonate (salt)
|
C20H30N3O10S-
|
Molecular Weight:504.5313
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
314291-13-9
|
| 4-Bromo-5-chloro-furan-2-carboxylic acid
|
C5H2BrClO3
|
Molecular Weight:225.42458
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
31491-40-4
|
| Matsukaze-lactone
|
C20H14O6
|
Molecular Weight:350.322
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3153-73-9
|
| Polyphenyl ether
|
C30H22O4
|
Molecular Weight:
Density:N/A
Boiling Point:270-280 °C(Press: 0.1 Torr)
Melting Point:N/A
|
31533-76-3
|
| DIGOXIGENIN-TETRA-DIGITOXOSIDE
|
C47H74O17
|
Molecular Weight:911.08026
Density:N/A
Boiling Point:N/A
Melting Point:213°C
|
31539-05-6
|
| 1-pyridin-3-ylpiperidin-4-one
|
C10H12N2O
|
Molecular Weight:176.21508
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
315496-80-1
|
| benzenesulfonic acid, 4-ethenyl-, sodium salt, polymerwith ethenylbenzene
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
31619-79-1
|
| 2,5-Anhydro-D-ribitol
|
C5H10O4
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3169-92-4
|
| AMMONIUM NONOXYNOL-4 SULFATE
|
(NH4)2SO4
|
Molecular Weight:361.497
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
31691-97-1
|
| POLY(DIMETHYLSILOXANE), HYDROXY TERMINATED
|
|
Molecular Weight:
Density:0.98 g/mL at 25 °C
Boiling Point:182 °C
Melting Point:N/A
|
31692-79-2
|
| Methyl 4-deoxy-alpha-L-threo-hex-4-enopyranosiduronic acid
|
C7H10O6
|
Molecular Weight:190.151
Density:1.5±0.1 g/cm3
Boiling Point:407.9±45.0 °C at 760 mmHg
Melting Point:N/A
|
31718-88-4
|
| Hexanedioic acid, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol and (Z)-9-octadecenoic acid
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
31727-13-6
|
| POLYACRYLATE-2
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
31759-42-9
|
| Indolo[3,2,1-de]acridin-8-one
|
C19H11NO
|
Molecular Weight:269.29674
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
32081-26-8
|
| O-2-(Acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1-2)-O-[2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1-4)]-O-alpha-D-mannopyranosyl-(1-3)-O-[O-2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1-2)-O-[2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1-6)]-alpha-D-mannopyranosyl-(1-6)]-O-beta-D-mannopyranosyl-(1-4)-O-2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1-4)-O-[6-deoxy-alpha-L-galactopyranosyl-(1-3)]-2-(acetylamino)-2-deoxy-D-glucose
|
C72H120N6O50
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
321142-61-4
|
| 1,2-O-(1-Methylethylidene)-3-O-(phenylmethyl)-alpha-D-glucofuranose 6-(2,2-dimethylpropanoate)
|
C21H30O7
|
Molecular Weight:394.4587
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
321380-09-0
|
| [VEIm]TS
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
321842-74-4
|
| Bromhexine Related Compound 2 HCl
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
32193-43-4
|
| 6-Bromo-2-naphthalenyl beta-D-mannopyranoside
|
C16H17BrO6
|
Molecular Weight:385.20658
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
322474-07-7
|
| 2-METHYL-3-MORPHOLIN-4-YL-PROPIONIC ACID
|
C8H15NO3
|
Molecular Weight:173.21
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
322725-55-3
|
| Adefovir Dipivoxil Impurity 20
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
323201-06-5
|
| AKOS BBS-00006157
|
C16H10O5
|
Molecular Weight:282.2476
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
32396-84-2
|
| 2-(4-nitro-1H-pyrazol-1-yl)acetamide
|
C5H6N4O3
|
Molecular Weight:170.13
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
32407-64-0
|
| 4'-AMinoMethyl-5-FAM
|
C22H15NO7
|
Molecular Weight:405.357
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
326802-08-8
|
| N-AcetylneuraMinic acid Methyl ester
|
C12H21NO9
|
Molecular Weight:323.29644
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
32766-94-2
|
| NIR-IM 2C2
|
C46H60N6.2(SbF6)
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3283-10-1
|
| L-beta-homoglutamic acid
|
C6H11NO4
|
Molecular Weight:161.156
Density:1.3±0.1 g/cm3
Boiling Point:375.5±32.0 °C at 760 mmHg
Melting Point:N/A
|
32908-48-8
|
| 2’-Fluoro-2’-deoxy-ara-A(Bz)-3’-phosphoramidite
|
C47H51FN7O7P
|
Molecular Weight:875.94
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
329187-86-2
|
| VitaMin U
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3293-12-7
|
| Benzoic acid,4-[[(5-Methoxy-5-oxopentyl)[2-[2-[[4-(2-phenylethyl)phenyl]Methoxy]phenyl]ethyl]aMino]Methyl]-, Methyl ester
|
C38H43NO5
|
Molecular Weight:593.75172
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
329773-33-3
|
| diethyl 2,6-bis((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
|
C23H32ClN3O6
|
Molecular Weight:481.96968
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
331258-31-2
|
| (S)-3-Amino-4-(2-Fluorophenyl)butyric Acid Hydrochloride
|
C10H13ClFNO2
|
Molecular Weight:233.67
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
331763-61-2
|
| (S)-3-Amino-4-(1-naphthyl)-butyric acid-HCl
|
C14H16ClNO2
|
Molecular Weight:265.73534
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
331846-99-2
|
| (S)-3-Amino-4-(2,4-dichlorophenyl)-butyric acid-HCl
|
C10H12Cl3NO2
|
Molecular Weight:284.56678
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
331847-11-1
|
| 4-Bromo-1-chloro-2-(4-methoxy-benzyl)-benzene
|
C14H12BrClO
|
Molecular Weight:311.60148
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
333361-51-6
|
| N-Benzyl-4-(chloroMethyl)benzaMide
|
C15H14ClNO
|
Molecular Weight:259.73076
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
334709-06-7
|
| 5-amino-1,2-dihydropyrimidin-2-ol
|
C4H7N3O
|
Molecular Weight:113.11788
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33631-17-3
|
| MAGNESIUM D-GLUCONATE HYDRATE
|
C12H24MgO15
|
Molecular Weight:432.61
Density:N/A
Boiling Point:N/A
Melting Point:200 °C (dec.)(lit.)
|
336879-53-9
|
| Ir(bt)2(acac); Bis(2-phenyl-benzothiazole-C2,N)(acetylacetonate)iridium(III)
|
C31H23IrN2O2S2
|
Molecular Weight:711.87
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
337526-88-2
|
| Isavuconazole
|
|
Molecular Weight:
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
338990-63-9
|
| 1,2:4,6-Bis-O-(1-methylethylidene)-alpha-D-fructofuranose
|
C12H20O6
|
Molecular Weight:260.2836
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
33941-60-5
|
| Methyl 2,3,6-tri-O-benzoyl-alpha-D-mannopyranoside
|
C28H26O9
|
Molecular Weight:506.50064
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3396-68-7
|
| N,N-BIS((S)-1-PHENYLETHYL) PHTHALAMIC ACID
|
C24H23NO3
|
Molecular Weight:373.44
Density:N/A
Boiling Point:N/A
Melting Point:100-110 °C(lit.)
|
340168-99-2
|
| 15S-Travoprost
|
C26H35F3O6
|
Molecular Weight:500.5477096
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
340181-93-3
|