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 |
| Ethyl isoxazol-3-carboxylate |
C6H7NO3 |
Molecular Weight:141.125
Density:1.2±0.1 g/cm3
Boiling Point:219.5±13.0 °C at 760 mmHg
Melting Point:N/A |
3209-70-9 |
| METHYL 4-CHLORO-2-OXO-2H-CHROMENE-3-CARBOXYLATE |
C11H7ClO4 |
Molecular Weight:238.62400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
213181-25-0 |
| 1-(1H-Imidazol-4-Yl)Methanamine |
C4H7N3 |
Molecular Weight:97.118
Density:1.2±0.1 g/cm3
Boiling Point:341.9±17.0 °C at 760 mmHg
Melting Point:N/A |
13400-46-9 |
| Pyrrolo[2,1-f][1,2,4]triazin-4-amine |
C6H6N4 |
Molecular Weight:134.139
Density:1.5±0.1 g/cm3
Boiling Point:N/A
Melting Point:N/A |
159326-68-8 |
| 6-chloro-2,3,4,4a,9,9a-hexahydro-1h-carbazole-1-carboxamide |
C13H15ClN2O |
Molecular Weight:250.72400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
871586-81-1 |
| 6-(3-CHLORO-5-FLUOROPHENYL)-4,4-DIMETHYL-1H-BENZO[D][1,3]OXAZIN-2(4H)-ONE |
C16H13ClFNO2 |
Molecular Weight:305.73100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
304854-09-9 |
| METHYL 7-BROMO-3-OXO-3,4-DIHYDROQUINOXALINE-2-CARBOXYLATE |
C10H7BrN2O3 |
Molecular Weight:283.07800
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
221167-40-4 |
| 4-BROMO-3-NITRO-1-NAPHTHOIC ACID |
C11H6BrNO4 |
Molecular Weight:296.07400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
852381-11-4 |
| 1-[(Aminooxy)methyl]-2-methoxybenzene hydrochloride |
C8H12ClNO2 |
Molecular Weight:189.63900
Density:N/A
Boiling Point:N/A
Melting Point:112-116ºC |
317821-72-0 |
| METHYL 7-FLUORO-3-OXO-3,4-DIHYDROQUINOXALINE-2-CARBOXYLATE |
C10H7FN2O3 |
Molecular Weight:222.17300
Density:1.49g/cm3
Boiling Point:N/A
Melting Point:N/A |
221167-39-1 |
| 7-(TRIFLUOROMETHYL)-1-TETRALONE |
C11H9F3O |
Molecular Weight:214.18400
Density:1.288±0.06 g/cm3 (20ºC 760 Torr)
Boiling Point:269.7±40.0ºC (760 Torr)
Melting Point:N/A |
54752-50-0 |
| METHYL 3-PHENYL-3-(PYRROLIDIN-1-YL)PROPANOATE |
C14H19NO2 |
Molecular Weight:233.30600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
7032-65-7 |
| 4-(chloromethyl)-1,2-oxazole |
C4H4ClNO |
Molecular Weight:117.53400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
98020-14-5 |
| 5-methoxy-1h-pyrazolo[3,4-c]pyridine |
C7H7N3O |
Molecular Weight:149.15000
Density:1.328g/cm3
Boiling Point:320.472ºC at 760 mmHg
Melting Point:N/A |
76006-07-0 |
| TERT-BUTYL TETRAHYDROPYRIMIDINE-1(2H)-CARBOXYLATE |
C9H18N2O2 |
Molecular Weight:186.251
Density:1.0±0.1 g/cm3
Boiling Point:258.0±33.0 °C at 760 mmHg
Melting Point:N/A |
867065-85-8 |
| 4-TERT-BUTYLBENZYLISOCYANIDE |
C12H15N |
Molecular Weight:173.25400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
728919-99-1 |
| 5-Chloro-6-methylpyrimidin-4-ol |
C5H5ClN2O |
Molecular Weight:144.55900
Density:1.45g/cm3
Boiling Point:206.4ºC at 760 mmHg
Melting Point:N/A |
7752-72-9 |
| 2-(5-BROMO-1H-INDAZOL-1-YL)ETHANAMINE |
C9H10BrN3 |
Molecular Weight:240.10000
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
210580-38-4 |
| 4-hydroxy-3-methoxyphenylglycol hemipiperazinium salt |
C22H34N2O8 |
Molecular Weight:454.51400
Density:N/A
Boiling Point:392.9ºC at 760 mmHg
Melting Point:115-119ºC |
67423-45-4 |
| 7-keto Cholesterol-d7 |
C27H37D7O2 |
Molecular Weight:407.680
Density:1.0±0.1 g/cm3
Boiling Point:516.7±29.0 °C at 760 mmHg
Melting Point:166-168°C (lit.) |
127684-08-6 |
| Sodium (2S)-2-hydroxy(3,3,3-2H3)propanoate |
C3H2D3NaO3 |
Molecular Weight:115.078
Density:N/A
Boiling Point:N/A
Melting Point:163-165ºC(lit.) |
285979-84-2 |
| Bis(2-chloroethyl)amine-1,1,2,2-d4 hydrochloride |
C4H6Cl3D4N |
Molecular Weight:182.51300
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
352431-06-2 |
| 9-Nitro(2H9)anthracene |
C14D9NO2 |
Molecular Weight:232.282
Density:1.3±0.1 g/cm3
Boiling Point:402.9±14.0 °C at 760 mmHg
Melting Point:N/A |
220381-38-4 |
| potassium palmitate |
C16H31KO2 |
Molecular Weight:294.51400
Density:N/A
Boiling Point:340.6ºC at 760 mmHg
Melting Point:N/A |
2624-31-9 |
| 5-Aminolevulinic acid-d2 hydrochloride |
C5H8D2ClNO3 |
Molecular Weight:169.60
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
187237-35-0 |
| Benzoate-d5 sodium |
C7D5NaO2 |
Molecular Weight:149.13400
Density:N/A
Boiling Point:N/A
Melting Point:>300ºC(lit.) |
62790-26-5 |
| 1-Ethyl-3-methylimidazolium Methanesulfonate |
C7H14N2O3S |
Molecular Weight:206.263
Density:1.247
Boiling Point:363ºC at 760 mmHg
Melting Point:35ºC |
145022-45-3 |
| N-Vinyl-2-piperidone |
C7H11NO |
Molecular Weight:125.16800
Density:1.09g/cm3
Boiling Point:236.027ºC at 760 mmHg
Melting Point:N/A |
4370-23-4 |
| alpha-[butylamino]methyl-p-hydroxybenzyl alcohol |
C24H40N2O8S |
Molecular Weight:516.64800
Density:N/A
Boiling Point:375.2ºC at 760mmHg
Melting Point:175-177ºC |
5716-20-1 |
| β-ACETYLDIGOXIN |
C43H66O15 |
Molecular Weight:822.97500
Density:1.34 g/cm3
Boiling Point:930.3ºC at 760 mmHg
Melting Point:271-273ºC |
5355-48-6 |
| calcium pidolate |
C10H12CaN2O6 |
Molecular Weight:296.29000
Density:N/A
Boiling Point:453.1ºC at 760 mmHg
Melting Point:N/A |
31377-05-6 |
| 4-(4-Allyloxycarbonylpiperizino)phenylboronic acid, pinacol ester |
C20H29BN2O4 |
Molecular Weight:372.26600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1073354-49-0 |
| METHYL 4-PHENYLCUBANECARBOXYLATE |
C16H14O2 |
Molecular Weight:238.28100
Density:1.514g/cm3
Boiling Point:328.9ºC at 760 mmHg
Melting Point:N/A |
123675-82-1 |
| N,N-diethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide |
C17H26BNO3 |
Molecular Weight:303.204
Density:1.0±0.1 g/cm3
Boiling Point:432.1±28.0 °C at 760 mmHg
Melting Point:N/A |
325142-99-2 |
| n-[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]formamide |
C13H18BNO3 |
Molecular Weight:247.09800
Density:N/A
Boiling Point:N/A
Melting Point:85-89 °C(lit.) |
480425-36-3 |
| 2-(3,5-Dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane |
C14H21BO4 |
Molecular Weight:264.12500
Density:1.05g/cm3
Boiling Point:374.5ºC at 760 mmHg
Melting Point:90-94ºC(lit.) |
365564-07-4 |
| Tetrahydroxydiboron |
B2H4O4 |
Molecular Weight:89.65
Density:1.4±0.1 g/cm3
Boiling Point:N/A
Melting Point:290°C(lit.) |
13675-18-8 |
| TERT-BUTYL 3,5-DIMETHYL-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1H-PYRAZOLE-1-CARBOXYLATE |
C16H27BN2O4 |
Molecular Weight:322.20800
Density:N/A
Boiling Point:N/A
Melting Point:112 °C |
1073354-70-7 |
| 1-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea |
C13H19BN2O3 |
Molecular Weight:262.11300
Density:1.14g/cm3
Boiling Point:379.7ºC at 760 mmHg
Melting Point:N/A |
877134-77-5 |
| Potassium isoquinoline-4-trifluoroborate |
C9H6BF3KN |
Molecular Weight:235.05500
Density:N/A
Boiling Point:N/A
Melting Point:251-256℃ |
1111733-07-3 |
| 1-Propyl-1H-pyrazole-4-boronic acid pinacol ester |
C12H21BN2O2 |
Molecular Weight:236.118
Density:1.0±0.1 g/cm3
Boiling Point:338.0±15.0 °C at 760 mmHg
Melting Point:N/A |
827614-69-7 |
| Naphthalene-2-boronic acid pinacol ester |
C16H19BO2 |
Molecular Weight:254.13200
Density:1.06g/cm3
Boiling Point:378.7ºC at 760mmHg
Melting Point:64.0 to 68.0 °C |
256652-04-7 |
| 4-(tert-Butoxycarbonyloxy)phenylboronic acid pinacol ester |
C17H25BO5 |
Molecular Weight:320.18800
Density:1.631g/cm3
Boiling Point:414ºC at 760 mmHg
Melting Point:107-111ºC(lit.) |
480438-75-3 |
| 4,4,5,5-Tetramethyl-2-(p-tolyl)-1,3,2-dioxaborolane |
C13H19BO2 |
Molecular Weight:218.100
Density:1.0±0.1 g/cm3
Boiling Point:298.2±19.0 °C at 760 mmHg
Melting Point:53.3-54.0ºC |
195062-57-8 |
| 4-METHOXYCARBONYLCUBANECARBOXYLIC ACID |
C11H10O4 |
Molecular Weight:206.19500
Density:1.956g/cm3
Boiling Point:341.5ºC at 760mmHg
Melting Point:181°C |
24539-28-4 |
| Tert-butyl-n-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]carbamate |
C17H26BNO4 |
Molecular Weight:319.204
Density:1.1±0.1 g/cm3
Boiling Point:387.0±25.0 °C at 760 mmHg
Melting Point:148-153 °C(lit.) |
330793-09-4 |
| 1-(CHLOROMETHYL)-3,5-DINITROBENZENE |
C7H5ClN2O4 |
Molecular Weight:216.57900
Density:1.538 g/cm3
Boiling Point:373.4ºC at 760 mmHg
Melting Point:79-82ºC(lit.) |
74367-78-5 |
| Ethanone,1-(2,4,5-trimethoxyphenyl)- |
C11H14O4 |
Molecular Weight:210.22600
Density:1.089 g/cm3
Boiling Point:328.3ºC at 760 mmHg
Melting Point:N/A |
1818-28-6 |
| Phenprocoumon |
C18H16O3 |
Molecular Weight:280.318
Density:1.3±0.1 g/cm3
Boiling Point:463.2±45.0 °C at 760 mmHg
Melting Point:179.5ºC |
435-97-2 |
| 1-(4'-Bromophenoxy)-1-ethoxyethane |
C10H13BrO2 |
Molecular Weight:245.11300
Density:1.318g/cm3
Boiling Point:130-132ºC
Melting Point:N/A |
39255-20-4 |