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-Sulfo-2,3,5,6-tetrafluorobenzoic Acid |
C7H2F4O5S |
Molecular Weight:274.14600
Density:1.936g/cm3
Boiling Point:N/A
Melting Point:N/A |
125662-60-4 |
| 4-Sulfothiacalix[4]arene Sodium Salt |
C24H12Na4O12S8 |
Molecular Weight:904.822
Density:N/A
Boiling Point:N/A
Melting Point:390ºC |
211561-04-5 |
| 4-tert-Butyl-1-(ethoxycarbonylmethoxy)thiacalix[4]arene |
C56H72O12S4 |
Molecular Weight:1065.424
Density:1.2±0.1 g/cm3
Boiling Point:955.4±65.0 °C at 760 mmHg
Melting Point:N/A |
210706-03-9 |
| 4-tert-Butylcalix[5]arene-crown-5-complex |
C43H44O8 |
Molecular Weight:688.80500
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
151412-40-7 |
| 4-TRANS-PHENYLCYCLOHEXANE-CIS-DICARBOXYLIC ACID |
C14H16O4 |
Molecular Weight:248.27400
Density:N/A
Boiling Point:476.2ºC at 760mmHg
Melting Point:185ºC |
36299-64-6 |
| Benzo[b]tellurophene-2-carboxylic acid |
C9H6O2Te |
Molecular Weight:273.74300
Density:N/A
Boiling Point:N/A
Melting Point:208-212ºC |
34595-48-7 |
| C-BENZYLCALIX[4!RESORCINARENE |
C56H48O8 |
Molecular Weight:848.97600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
168609-07-2 |
| Sulfuricacid, cerium salt, hydrate (9CI) |
CeH2O9S2 |
Molecular Weight:350.25600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
123333-60-8 |
| Chloromethyl(methyl)phosphinic Chloride |
C2H5Cl2OP |
Molecular Weight:146.94000
Density:1.354g/cm3
Boiling Point:268.8ºC at 760mmHg
Melting Point:N/A |
26350-26-5 |
| Chloropentafluoroacetone Monohydrate |
C3H2ClF5O2 |
Molecular Weight:200.49200
Density:1.73 g/cm3
Boiling Point:40.6ºC at 760 mmHg
Melting Point:19ºC |
6984-99-2 |
| Cholesteryl 2-ethylhexanoate |
C36H62O3 |
Molecular Weight:542.87600
Density:0.97g/cm3
Boiling Point:561.8ºC at 760mmHg
Melting Point:N/A |
41329-01-5 |
| 2-phenyl-3-(2-thienyl)acrylic acid |
C13H10O2S |
Molecular Weight:230.28200
Density:1.303g/cm3
Boiling Point:343.7ºC at 760mmHg
Melting Point:184-186ºC |
10569-35-4 |
| Diundecylamine |
C22H47N |
Molecular Weight:325.61500
Density:0.813g/cm3
Boiling Point:232ºC / 10mmHg
Melting Point:49ºC |
16165-33-6 |
| N,N'-1,2-Phenylenebis-Acetamide |
C10H12N2O2 |
Molecular Weight:192.214
Density:1.235g/cm3
Boiling Point:464.418°C at 760 mmHg
Melting Point:183ºC |
2050-85-3 |
| (R)-BENZYL2-OXOOXETAN-3-YLCARBAMATE |
C23H19O3P |
Molecular Weight:374.36900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
557089-90-4 |
| N-2-NITROPHENYLSULFENYL-L-LEUCINE |
C12H16N2O4S |
Molecular Weight:284.33100
Density:1.305g/cm3
Boiling Point:450.255ºC at 760 mmHg
Melting Point:N/A |
7685-67-8 |
| 1H-indol-7-amine |
C8H8N2 |
Molecular Weight:132.16300
Density:1.268g/cm3
Boiling Point:354ºC at 760mmHg
Melting Point:96-100 °C |
5192-04-1 |
| 4-PENTYLBICYCLO[2.2.2]OCTAN-1-OL |
C13H24O |
Molecular Weight:196.32900
Density:0.998±0.06 g/cm3 (20ºC 760 Torr)
Boiling Point:260.1±8.0ºC (760 Torr)
Melting Point:55-56ºC (cyclohexane ) |
76921-55-6 |
| TERT-BUTYL3-((METHYLAMINO)METHYL)PIPERIDINE-1-CARBOXYLATE |
C12H24N2O2 |
Molecular Weight:228.33100
Density:0.988 g/cm3
Boiling Point:301ºC at 760 mmHg
Melting Point:N/A |
1017356-25-0 |
| 1-(3-Fluoro-phenyl)-piperidin-4-one |
C11H12FNO |
Molecular Weight:193.21700
Density:1.19 g/cm3
Boiling Point:327.269ºC at 760 mmHg
Melting Point:N/A |
158553-31-2 |
| (3-Amino-4-chlorophenyl)boronic acid |
C6H7BClNO2 |
Molecular Weight:171.389
Density:1.4±0.1 g/cm3
Boiling Point:372.9±52.0 °C at 760 mmHg
Melting Point:N/A |
850689-36-0 |
| 2,5-Diphenyl-3-(p-diphenyl)tetrazolium chloride |
C25H19ClN4 |
Molecular Weight:410.89800
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
77205-78-8 |
| 3,5-Diphenyl-1-(4-phenylazophenyl)formazan |
C25H20N6 |
Molecular Weight:404.46700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
77205-79-9 |
| Tetrahydropyran-3-ylamine hydrochloride |
C5H12ClNO |
Molecular Weight:137.60800
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
675112-58-0 |
| 1,20-EICOSANEDIOL |
C20H42O2 |
Molecular Weight:314.54600
Density:0.889g/cm3
Boiling Point:431ºC at 760 mmHg
Melting Point:N/A |
7735-43-5 |
| 2,6-Dimethoxybenzenecarbothioamide |
C9H11NO2S |
Molecular Weight:197.25400
Density:N/A
Boiling Point:N/A
Melting Point:184-186ºC |
77378-18-8 |
| (3-Ethylphenyl)boronic acid |
C8H11BO2 |
Molecular Weight:149.983
Density:1.1±0.1 g/cm3
Boiling Point:299.6±33.0 °C at 760 mmHg
Melting Point:102.5-107.5ºC |
90555-65-0 |
| Benzoic acid,1,1-dimethylethyl ester |
C11H14O2 |
Molecular Weight:178.22800
Density:1 g/cm3
Boiling Point:54ºC / 1mmHg
Melting Point:N/A |
774-65-2 |
| 1-(Methylsulfonyl)-4-piperidinone |
C6H11NO3S |
Molecular Weight:177.221
Density:1.3±0.1 g/cm3
Boiling Point:320.4±52.0 °C at 760 mmHg
Melting Point:N/A |
218780-53-1 |
| Cyclopropylboronic acid pinacol ester |
C9H17BO2 |
Molecular Weight:168.041
Density:0.922
Boiling Point:146 ºC
Melting Point:N/A |
126689-01-8 |
| 3-Amino-4-methylpyridazine |
C5H7N3 |
Molecular Weight:109.12900
Density:1.155g/cm3
Boiling Point:316.8ºC at 760mmHg
Melting Point:N/A |
90568-15-3 |
| 3-Ethyl-4-oxo-piperidine-1-carboxylic acid tert-butyl ester |
C12H21NO3 |
Molecular Weight:227.30000
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
117565-57-8 |
| 3,4-DIHYDRO-3-[(4-MORPHOLINYL)METHYL]-2H-1,4-BENZOXAZINE |
C13H18N2O2 |
Molecular Weight:234.29400
Density:1.139g/cm3
Boiling Point:379.5ºC at 760 mmHg
Melting Point:N/A |
131513-35-4 |
| (2-Chloro-5-methoxyphenyl)boronic acid |
C7H8BClO3 |
Molecular Weight:186.401
Density:1.3±0.1 g/cm3
Boiling Point:354.8±52.0 °C at 760 mmHg
Melting Point:106-110ºC |
89694-46-2 |
| 4-METHYLAMINO-PIPERIDINE-1-CARBOXYLIC ACID ALLYL ESTER |
C10H18N2O2 |
Molecular Weight:198.26200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
686320-62-7 |
| 1-N-PHENYL-2-METHYL-PIPERIDIN-4-ONE |
C12H15NO |
Molecular Weight:189.25400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
857388-33-1 |
| TERT-BUTYL 2-(TERT-BUTYL)-4-OXOPIPERIDINE-1-CARBOXYLATE |
C14H25NO3 |
Molecular Weight:255.35300
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
362704-50-5 |
| 3-Bromo-5-methylbenzonitrile |
C8H6BrN |
Molecular Weight:196.044
Density:1.5±0.1 g/cm3
Boiling Point:256.1±20.0 °C at 760 mmHg
Melting Point:57-58.5 ℃ |
124289-21-0 |
| 4-methoxy-3-(triisopropylsilyl)pyridine |
C15H27NOSi |
Molecular Weight:265.46600
Density:0.91 g/cm3
Boiling Point:331.2ºC at 760 mmHg
Melting Point:N/A |
126378-42-5 |
| tert-butyl 3-benzyl-4-oxopiperidine-1-carboxylate |
C17H23NO3 |
Molecular Weight:289.36900
Density:1.115g/cm3
Boiling Point:409ºC at 760mmHg
Melting Point:N/A |
193274-82-7 |
| 5-Bromoisophthalonitrile |
C8H3BrN2 |
Molecular Weight:207.027
Density:1.7±0.1 g/cm3
Boiling Point:256.8±20.0 °C at 760 mmHg
Melting Point:N/A |
160892-07-9 |
| 1-Boc-3-(methylaminomethyl)-pyrrolidine |
C11H22N2O2 |
Molecular Weight:214.30500
Density:1.004 g/cm3
Boiling Point:281.8ºC at 760 mmHg
Melting Point:N/A |
404594-16-7 |
| Benzyl 4-cyanopiperidine-1-carboxylate |
C14H16N2O2 |
Molecular Weight:244.28900
Density:1.18g/cm3
Boiling Point:416.5ºC at 760mmHg
Melting Point:N/A |
161609-84-3 |
| Benzyl piperidine-2-ylmethylcarbamate |
C14H20N2O2 |
Molecular Weight:248.32100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
184044-09-5 |
| 3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine |
C11H16BNO2 |
Molecular Weight:205.061
Density:1.0±0.1 g/cm3
Boiling Point:300.9±15.0 °C at 760 mmHg
Melting Point:102-104.4 °C(lit.) |
329214-79-1 |
| 2,3,6-Tribromo-5-methylpyridine |
C6H4Br3N |
Molecular Weight:329.815
Density:2.2±0.1 g/cm3
Boiling Point:322.7±37.0 °C at 760 mmHg
Melting Point:N/A |
393516-82-0 |
| tert-butyl 3,5-dimethylpiperazine-1-carboxylate |
C11H22N2O2 |
Molecular Weight:214.305
Density:1.0±0.1 g/cm3
Boiling Point:279.7±15.0 °C at 760 mmHg
Melting Point:N/A |
129779-30-2 |
| 5-ETHYLTHIOPHENE-2-BORONIC ACID |
C6H9BO2S |
Molecular Weight:156.01000
Density:1.204 g/cm3
Boiling Point:307.948ºC at 760 mmHg
Melting Point:N/A |
162607-16-1 |
| tert-Butyl methyl(piperidin-3-ylmethyl)-carbamate |
C12H24N2O2 |
Molecular Weight:228.33100
Density:0.978g/cm3
Boiling Point:306.014ºC at 760 mmHg
Melting Point:N/A |
169750-76-9 |
| (R)-N-4-Benzyl-2-phenylpiperazine |
C17H20N2 |
Molecular Weight:252.35400
Density:1.069g/cm3
Boiling Point:386.3ºC at 760mmHg
Melting Point:N/A |
5368-32-1 |