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 |
| p-[(2,4-diaminophenyl)azo]benzenesulphonamide |
C12H13N5O2S |
Molecular Weight:291.32900
Density:1.54g/cm3
Boiling Point:601.2ºC at 760mmHg
Melting Point:249.5°C |
103-12-8 |
| sulfapyridine sodium |
C11H10N3NaO2S |
Molecular Weight:271.27100
Density:N/A
Boiling Point:473.5ºC at 760 mmHg
Melting Point:N/A |
127-57-1 |
| 5-amino-2-(4-aminophenyl)sulfonylbenzenesulfonamide |
C12H13N3O4S2 |
Molecular Weight:327.37900
Density:1.549g/cm3
Boiling Point:686.1ºC at 760mmHg
Melting Point:N/A |
17615-73-5 |
| 1-FURFURYL-3-(P-TOLYLSULFONYL)-UREA |
C13H14N2O4S |
Molecular Weight:294.32600
Density:1.324g/cm3
Boiling Point:N/A
Melting Point:N/A |
100796-22-3 |
| 4-(n-phthalimidyl)benzolsulfonyl chlorid |
C14H10ClNO3S |
Molecular Weight:307.75200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
114341-14-9 |
| Benzo[b]thiophen-2-amine, 6-Methoxy-N,N-dimethyl- |
C11H13NOS |
Molecular Weight:207.29200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
111359-29-6 |
| 4-Nitro-1-benzothiophene |
C8H5NO2S |
Molecular Weight:179.19600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
10133-34-3 |
| 4,5,6,7-TETRAFLUORO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID METHYL ESTER |
C10H4F4O2S |
Molecular Weight:264.19600
Density:1.574g/cm3
Boiling Point:310.6ºC at 760 mmHg
Melting Point:N/A |
155167-42-3 |
| 6-IODO-BENZO[B]THIOPHENE-2-CARBOXYLIC ACID METHYL ESTER |
C10H7IO2S |
Molecular Weight:318.13100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
146137-94-2 |
| Methyl 3-(bromomethyl)-2-nitrobenzoate |
C9H8BrNO4 |
Molecular Weight:274.068
Density:1.6±0.1 g/cm3
Boiling Point:349.8±32.0 °C at 760 mmHg
Melting Point:N/A |
132874-06-7 |
| BENZOIC ACID, 3-BROMO-2,6-DIMETHYL- |
C9H9BrO2 |
Molecular Weight:229.07100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
123278-07-9 |
| 4-(2-OXO-PROPYL)-BENZOIC ACID METHYL ESTER |
C11H12O3 |
Molecular Weight:192.211
Density:1.1±0.1 g/cm3
Boiling Point:295.1±23.0 °C at 760 mmHg
Melting Point:N/A |
22744-50-9 |
| tert-butyl 4-(aminomethyl)benzoate |
C12H17NO2 |
Molecular Weight:207.26900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
107045-28-3 |
| 5-Chloro-2-fluoro-4-methylbenzoic acid |
C8H6ClFO2 |
Molecular Weight:188.58300
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1263274-67-4 |
| 2,4-Difluoro-3-nitrobenzonitrile |
C7H2F2N2O2 |
Molecular Weight:184.10000
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1186194-75-1 |
| 3-Fluoro-5-hydroxybenzaldehyde |
C7H5FO2 |
Molecular Weight:140.11200
Density:N/A
Boiling Point:246.2±20.0°C at 760 mmHg
Melting Point:N/A |
1023290-12-1 |
| 2,4-Difluoro-5-nitrotoluene |
C7H5F2NO2 |
Molecular Weight:173.11700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
179011-38-2 |
| 2-Amino-4,7-dihydro-1,3-benzothiazol-6(5H)-one |
C7H8N2OS |
Molecular Weight:168.216
Density:1.4±0.1 g/cm3
Boiling Point:396.2±42.0 °C at 760 mmHg
Melting Point:N/A |
113030-24-3 |
| 2-(4-fluoro-2-nitrophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane |
C12H15BFNO4 |
Molecular Weight:267.061
Density:1.2±0.1 g/cm3
Boiling Point:354.4±32.0 °C at 760 mmHg
Melting Point:N/A |
1288978-82-4 |
| (5-Chloro-6-fluoro-3-pyridinyl)boronic acid |
C5H4BClFNO2 |
Molecular Weight:175.353
Density:1.5±0.1 g/cm3
Boiling Point:341.2±52.0 °C at 760 mmHg
Melting Point:N/A |
1366482-32-7 |
| N-(5-Methylpyridin-2-yl)pivalamide |
C11H16N2O |
Molecular Weight:192.25800
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
86847-78-1 |
| 2-(2-methyl-6-nitrophenyl)acetic acid |
C9H9NO4 |
Molecular Weight:195.17200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
23876-18-8 |
| (R)-tert-butyl 2-ethylpyrrolidine-1-carboxylate |
C11H21NO2 |
Molecular Weight:199.29000
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
876617-06-0 |
| METHYL4,5,6,7-TETRAHYDRO-4-OXOPYRAZOLO[1,5-A]PYRAZINE-2-CARBOXYLATE |
C8H9N3O3 |
Molecular Weight:195.175
Density:1.6±0.1 g/cm3
Boiling Point:512.6±45.0 °C at 760 mmHg
Melting Point:N/A |
604003-25-0 |
| 1-Benzyl-3-methyl-4-piperidinol |
C13H19NO |
Molecular Weight:205.296
Density:1.1±0.1 g/cm3
Boiling Point:325.9±22.0 °C at 760 mmHg
Melting Point:N/A |
91600-19-0 |
| Azoramide |
C15H17ClN2OS |
Molecular Weight:308.826
Density:1.2±0.1 g/cm3
Boiling Point:N/A
Melting Point:N/A |
932986-18-0 |
| 5-bromo-8-Methoxy-3,4-dihydronaphthalen-1(2H)-one |
C11H11BrO2 |
Molecular Weight:255.10800
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
77259-96-2 |
| 1-(3-fluoro-4-Methoxyphenyl)cyclopropanamine hydrochloride |
C10H13ClFNO |
Molecular Weight:217.668
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1260852-84-3 |
| 1-(6-Morpholinopyridin-3-yl)cyclopropanamine hydrochloride |
C12H18ClN3O |
Molecular Weight:255.744
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
566161-18-0 |
| 1-tert-Butyl 5-methyl 3-iodo-1H-indazole-1,5-dicarboxylate |
C14H15IN2O4 |
Molecular Weight:402.184
Density:1.7±0.1 g/cm3
Boiling Point:459.7±48.0 °C at 760 mmHg
Melting Point:N/A |
944904-57-8 |
| 2-Chloro-1H-pyrrolo[2,3-d]pyrimidin-4-amine |
C6H5ClN4 |
Molecular Weight:168.584
Density:1.6±0.1 g/cm3
Boiling Point:366.3±24.0 °C at 760 mmHg
Melting Point:N/A |
1192711-88-8 |
| 3-amino-4-[(2-methylpropan-2-yl)oxycarbonylamino]benzoic acid |
C12H16N2O4 |
Molecular Weight:252.266
Density:1.3±0.1 g/cm3
Boiling Point:381.0±37.0 °C at 760 mmHg
Melting Point:N/A |
954238-52-9 |
| 4-amino-3-((tert-butoxycarbonyl)amino)benzoic acid |
C12H16N2O4 |
Molecular Weight:252.266
Density:1.3±0.1 g/cm3
Boiling Point:378.0±37.0 °C at 760 mmHg
Melting Point:N/A |
1282523-83-4 |
| tert-butyl N-[3-(chloromethyl)phenyl]carbamate |
C12H16ClNO2 |
Molecular Weight:241.71400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
219706-58-8 |
| 2-Chloro-5-cyclopropylpyrimidine |
C7H7ClN2 |
Molecular Weight:154.59700
Density:N/A
Boiling Point:297.5±9.0 °C at 760 mmHg
Melting Point:N/A |
166740-44-9 |
| 3-nitro-5,6,8,9-tetrahydrobenzo[7]annulen-7-one |
C11H11NO3 |
Molecular Weight:205.21000
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
740842-50-6 |
| ethyl 3-hydroxy-2-oxo-1H-pyridine-4-carboxylate |
C8H9NO4 |
Molecular Weight:183.16100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
500372-11-2 |
| methyl N-(4-acetyl-3-nitrophenyl)carbamate |
C10H10N2O5 |
Molecular Weight:238.19700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1329171-70-1 |
| 2-(2-(tert-Butyl)phenoxy)pyridin-3-amine |
C15H18N2O |
Molecular Weight:242.31600
Density:N/A
Boiling Point:358.3±37.0°C at 760 mmHg
Melting Point:N/A |
861673-68-9 |
| 6-Iodoquinazoline-2,4(1H,3H)-dione |
C8H5IN2O2 |
Molecular Weight:288.04200
Density:2.008g/cm3
Boiling Point:N/A
Melting Point:N/A |
16353-27-8 |
| 6-Chloro-5-methoxy-1H-indole |
C9H8ClNO |
Molecular Weight:181.619
Density:1.3±0.1 g/cm3
Boiling Point:330.7±22.0 °C at 760 mmHg
Melting Point:N/A |
63762-72-1 |
| 3-[(2-Bromophenyl)(phenyl)methyl]pentanedioic acid |
C18H17BrO4 |
Molecular Weight:377.22900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
107520-32-1 |
| 2,2-Dimethyl-1-[(3S)-3-methyl-1-piperazinyl]-1-propanone |
C10H20N2O |
Molecular Weight:184.27900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1419100-97-2 |
| 5,8-Difluoro-1,2,3,4-Tetrahydroisoquinoline Hydrochloride |
C9H10ClF2N |
Molecular Weight:205.63200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1093064-83-5 |
| N-(3-Chloro-2-methylphenyl)-2,2-dimethylpropanamide |
C12H16ClNO |
Molecular Weight:225.71500
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
114153-36-5 |
| 4-hydrazinylbenzamide,hydrochloride |
C7H10ClN3O |
Molecular Weight:187.62700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
40566-97-0 |
| 2,5-Dihydroxyterephthalaldehyde |
C8H6O4 |
Molecular Weight:166.131
Density:1.5±0.1 g/cm3
Boiling Point:297.6±40.0 °C at 760 mmHg
Melting Point:262℃ |
1951-36-6 |
| N-Boc benzylamine |
C12H17NO2 |
Molecular Weight:207.26900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
42116-44-9 |
| 1-Methyl-1-propylpyrrolidin-1-ium bromide |
C8H18BrN |
Molecular Weight:208.13900
Density:N/A
Boiling Point:N/A
Melting Point:107 °C |
608140-09-6 |
| ethoxybis(pentane-2,4-dionato-O,O')(propan-2-olato)titanium |
C15H26O6Ti |
Molecular Weight:350.23000
Density:N/A
Boiling Point:187.6ºC at 760 mmHg
Melting Point:N/A |
68586-02-7 |