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 |
| tetrafluoro-1,3-dithietane |
C2F4S2 |
Molecular Weight:164.145
Density:1.8±0.1 g/cm3
Boiling Point:27.7±40.0 °C at 760 mmHg
Melting Point:N/A |
1717-50-6 |
| N-(2,2-diethoxyethyl)aniline |
C12H19NO2 |
Molecular Weight:209.28500
Density:1.023g/cm3
Boiling Point:320ºC at 760mmHg
Melting Point:N/A |
22758-34-5 |
| Astragaloside |
C28H32O17 |
Molecular Weight:640.54
Density:1.8±0.1 g/cm3
Boiling Point:1000.6±65.0 °C at 760 mmHg
Melting Point:N/A |
17429-69-5 |
| 3-Nitro-4-(Cyclohexylamino) Benzoic Acid Methyl Ester |
C14H18N2O4 |
Molecular Weight:278.30400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
503859-26-5 |
| 1-(3-Methylisoxazol-5-yl)ethanone |
C6H7NO2 |
Molecular Weight:125.12500
Density:1.105 g/cm3
Boiling Point:226.529ºC at 760 mmHg
Melting Point:73-75ºC |
55086-61-8 |
| 2'-Methyl-[1,1'-Biphenyl]-2-Carboxylic Acid |
C14H12O2 |
Molecular Weight:212.24400
Density:1.156g/cm3
Boiling Point:338.2ºC at 760 mmHg
Melting Point:N/A |
7111-77-5 |
| 2'-METHYL-[1,1'-BIPHENYL]-4-CARBONITRILE |
C14H11N |
Molecular Weight:193.24400
Density:1.09g/cm3
Boiling Point:327ºC at 760 mmHg
Melting Point:N/A |
189828-30-6 |
| 2,2-Dimethyl-1,3-Dioxolane-4-Carboxylic Acid |
C6H10O4 |
Molecular Weight:146.14100
Density:1.203 g/cm3
Boiling Point:244.151ºC at 760 mmHg
Melting Point:N/A |
62075-55-2 |
| 5-Nitro-3-Furancarboxylic Acid |
C5H3NO5 |
Molecular Weight:157.08100
Density:1.626g/cm3
Boiling Point:329.895ºC at 760 mmHg
Melting Point:N/A |
770-07-0 |
| 3-Ethyl-5-Benzofuranol |
C10H10O2 |
Molecular Weight:162.18500
Density:1.178g/cm3
Boiling Point:277.1ºC at 760 mmHg
Melting Point:N/A |
7182-23-2 |
| 4,5-Dihydro-6-(1-Methylethyl)-3(2H)-Pyridazinone |
C7H12N2O |
Molecular Weight:140.18300
Density:1.15g/cm3
Boiling Point:N/A
Melting Point:N/A |
210230-80-1 |
| Acetamide,N-(1-acetyl-2-oxopropyl)- |
C7H11NO3 |
Molecular Weight:157.16700
Density:1.086g/cm3
Boiling Point:330.6ºC at 760mmHg
Melting Point:N/A |
5440-23-3 |
| 2-[4-(hydroxymethyl)phenyl]benzoic acid |
C14H12O3 |
Molecular Weight:228.24300
Density:1.26g/cm3
Boiling Point:419.7ºC at 760 mmHg
Melting Point:N/A |
158144-54-8 |
| 2-Amino-6-methyl-5-nitro-3H-pyrimidin-4-one |
C5H6N4O3 |
Molecular Weight:170.12600
Density:1.83 g/cm3
Boiling Point:305.9ºC at 760 mmHg
Melting Point:N/A |
4214-85-1 |
| aminoacetone |
C3H7NO |
Molecular Weight:73.094
Density:0.9±0.1 g/cm3
Boiling Point:120.6±23.0 °C at 760 mmHg
Melting Point:N/A |
298-08-8 |
| Propanedinitrile,2-(aminoethoxymethylene)- |
C6H7N3O |
Molecular Weight:137.13900
Density:1.166g/cm3
Boiling Point:454ºC at 760 mmHg
Melting Point:N/A |
6825-53-2 |
| Hexanoic acid,5-methyl-4-oxo- |
C7H12O3 |
Molecular Weight:144.16800
Density:1.058g/cm3
Boiling Point:260.2ºC at 760 mmHg
Melting Point:N/A |
41654-04-0 |
| 2-Methoxy-5-Nitro-4-Pyrimidinamine |
C5H6N4O3 |
Molecular Weight:170.12600
Density:1.492g/cm3
Boiling Point:396.9ºC at 760 mmHg
Melting Point:N/A |
304646-29-5 |
| 4-Methoxy-2(3H)-benzothiazolone |
C8H7NO2S |
Molecular Weight:181.212
Density:1.3±0.1 g/cm3
Boiling Point:N/A
Melting Point:N/A |
80567-66-4 |
| 4-Pyridineethanamine,2-methoxy-(9CI) |
C8H12N2O |
Molecular Weight:152.19400
Density:1.063g/cm3
Boiling Point:255.677ºC at 760 mmHg
Melting Point:N/A |
764708-27-2 |
| 5-Benzimidazolecarboxylicacid,6-methyl-,methylester(8CI) |
C10H10N2O2 |
Molecular Weight:190.19900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
10351-79-8 |
| 1H-Benzimidazole-5-carboxylicacid,6-methyl-(9CI) |
C9H9ClN2O2 |
Molecular Weight:212.63300
Density:N/A
Boiling Point:519.2ºC at 760 mmHg
Melting Point:303-306ºC |
10351-76-5 |
| 6,7-Dihydro-5H-pyrrolo[1,2a]imidazole-2-carboxaldehyde |
C7H8N2O |
Molecular Weight:136.151
Density:1.4±0.1 g/cm3
Boiling Point:351.9±15.0 °C at 760 mmHg
Melting Point:N/A |
623564-38-5 |
| 1H-Benzimidazole-5-methanol,6-methyl-(9CI) |
C9H10N2O |
Molecular Weight:162.18800
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
267875-59-2 |
| 5-fluoro-8-nitroquinoline |
C9H5FN2O2 |
Molecular Weight:192.14700
Density:1.446g/cm3
Boiling Point:329.7ºC at 760 mmHg
Melting Point:N/A |
152167-85-6 |
| 4'-(Dibromomethyl)-[1,1'-Biphenyl]-4-Carbonitrile |
C14H9Br2N |
Molecular Weight:351.03600
Density:1.724g/cm3
Boiling Point:429.887ºC at 760 mmHg
Melting Point:N/A |
230647-73-1 |
| 2-Piperazinecarboxylic Acid Methyl Ester |
C6H12N2O2 |
Molecular Weight:144.17200
Density:1.059 g/cm3
Boiling Point:223.6ºC at 760 mmHg
Melting Point:N/A |
2758-98-7 |
| Telmisartan methyl ester |
C34H32N4O2 |
Molecular Weight:528.643
Density:1.2±0.1 g/cm3
Boiling Point:771.2±70.0 °C at 760 mmHg
Melting Point:170-175ºC |
528560-93-2 |
| methyl 2-(N-benzylanilino)acetate |
C16H17NO2 |
Molecular Weight:255.31200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
137307-61-0 |
| 2-(2,6-Dichlorophenoxy)propanamide |
C9H9Cl2NO2 |
Molecular Weight:234.079
Density:1.4±0.1 g/cm3
Boiling Point:397.0±32.0 °C at 760 mmHg
Melting Point:N/A |
344411-67-2 |
| 2-Amino-3-nitrobenzamide |
C7H7N3O3 |
Molecular Weight:181.149
Density:1.5±0.1 g/cm3
Boiling Point:319.2±22.0 °C at 760 mmHg
Melting Point:240-242 ℃ |
313279-12-8 |
| 4-Isopropylthiazole-2-carboxylic acid |
C7H9NO2S |
Molecular Weight:171.21700
Density:1.271 g/cm3
Boiling Point:309.418ºC at 760 mmHg
Melting Point:N/A |
300831-06-5 |
| 2-Chloro-3-Nitro-Phenol |
C6H4ClNO3 |
Molecular Weight:173.55400
Density:1.554 g/cm3
Boiling Point:279.6ºC at 760 mmHg
Melting Point:N/A |
603-84-9 |
| Benzenemethanol,4-methoxy-3-(phenylmethoxy)- |
C15H16O3 |
Molecular Weight:244.28600
Density:1.152g/cm3
Boiling Point:395.6ºC at 760mmHg
Melting Point:70-71 °C |
1860-60-2 |
| 1H-Benzimidazole-4-carboxamide,2-(methylthio)- |
C9H9N3OS |
Molecular Weight:207.25200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
636574-49-7 |
| 1-Piperazineacetamide, 4-(2-pyridinyl)- |
C11H16N4O |
Molecular Weight:220.27100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
697282-55-6 |
| 3-Azabicyclo[3.1.0]hexane-2,4-dione, 1-phenyl- |
C11H9NO2 |
Molecular Weight:187.19500
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
66503-91-1 |
| 3-Methoxy-2-nitrobenzamide |
C8H8N2O4 |
Molecular Weight:196.16000
Density:1.362g/cm3
Boiling Point:321.5ºC at 760 mmHg
Melting Point:N/A |
99595-85-4 |
| Anagyrine |
C15H20N2O |
Molecular Weight:244.33200
Density:1.22 g/cm3
Boiling Point:455.6ºC at 760 mmHg
Melting Point:N/A |
486-89-5 |
| Artemotil |
C17H28O5 |
Molecular Weight:312.401
Density:1.2±0.1 g/cm3
Boiling Point:372.4±42.0 °C at 760 mmHg
Melting Point:80-820ºC |
75887-54-6 |
| 2-(BENZYLOXY)-4-(BROMOMETHYL)-1-METHOXYBENZENE |
C15H15BrO2 |
Molecular Weight:307.18200
Density:1.349g/cm3
Boiling Point:390.68ºC at 760 mmHg
Melting Point:N/A |
55667-12-4 |
| 1,3-Naphthalenediol,6,8-dimethoxy- |
C12H12O4 |
Molecular Weight:220.22100
Density:1.308 g/cm3
Boiling Point:435.322ºC at 760 mmHg
Melting Point:N/A |
64954-45-6 |
| 6-Isopropyl-3(2H)-pyridazinone |
C7H10N2O |
Molecular Weight:138.16700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
570416-36-3 |
| 3-Furanmethanediol, 5-nitro-, diacetate |
C9H9NO7 |
Molecular Weight:243.17000
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
859445-34-4 |
| 5,6,7,8-tetrahydro-2-naphthalenylester |
C8H10N2O3 |
Molecular Weight:182.17700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
88678-34-6 |
| TYMAZOLINE |
C14H20N2O |
Molecular Weight:232.32100
Density:1.08g/cm3
Boiling Point:413.4ºC at 760mmHg
Melting Point:N/A |
24243-97-8 |
| Crocin II |
C38H54O19 |
Molecular Weight:814.824
Density:1.5±0.1 g/cm3
Boiling Point:1032.1±65.0 °C at 760 mmHg
Melting Point:N/A |
55750-84-0 |
| Cyclanoline |
C20H24NO4+ |
Molecular Weight:342.408
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
18556-27-9 |
| (10a)-Androst-4-en-3-one |
C19H28O |
Molecular Weight:272.42500
Density:1.05
Boiling Point:390.6ºC at 760 mmHg
Melting Point:116-120ºC |
23124-52-9 |
| 6a,9a-Difluoro-11b,17a-dihydroxy-16a-methyl-3-oxoandrosta-1,4-diene-17b-carbothioic acid |
C21H26F2O4S |
Molecular Weight:412.49100
Density:1.364g/cm3
Boiling Point:550.003ºC at 760 mmHg
Melting Point:230-231°C |
80473-92-3 |