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 |
| N,N-Diethylhydroxylamine |
C4H11NO |
Molecular Weight:89.136
Density:0.9±0.1 g/cm3
Boiling Point:133.0±0.0 °C at 760 mmHg
Melting Point:−26-−25 °C(lit.) |
3710-84-7 |
| 3-Amino-5-mercapto-1,2,4-triazole |
C2H4N4S |
Molecular Weight:116.145
Density:1.7±0.1 g/cm3
Boiling Point:389.1±25.0 °C at 760 mmHg
Melting Point:>300 °C(lit.) |
16691-43-3 |
| Lidocaine |
C14H22N2O |
Molecular Weight:234.337
Density:1.0±0.1 g/cm3
Boiling Point:372.7±52.0 °C at 760 mmHg
Melting Point:66-69°C |
137-58-6 |
| 1,2-Dithiocane-3,8-diol |
C6H14O2S2 |
Molecular Weight:180.288
Density:1.3±0.1 g/cm3
Boiling Point:346.0±42.0 °C at 760 mmHg
Melting Point:63-64 °C(lit.) |
5244-34-8 |
| Benzyl (4-broMo-3-fluorophenyl)carbaMate |
C14H11BrFNO2 |
Molecular Weight:324.14500
Density:N/A
Boiling Point:359.7±42.0°C at 760 mmHg
Melting Point:N/A |
510729-01-8 |
| (3,5-DIBROMO-4-METHOXYPHENYL)(2-ETHYL-3-BENZOFURANYL)-METHANONE |
C18H14Br2O3 |
Molecular Weight:438.11000
Density:1.601g/cm3
Boiling Point:535.7ºC at 760 mmHg
Melting Point:N/A |
51073-13-3 |
| 4-hydroxypiperidine-1-carbonitrile |
C6H10N2O |
Molecular Weight:126.15600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
51075-37-7 |
| Tris(benzyltriazolylmethyl)amine |
C30H30N10 |
Molecular Weight:530.626
Density:1.3±0.1 g/cm3
Boiling Point:762.4±70.0 °C at 760 mmHg
Melting Point:132-143℃ |
510758-28-8 |
| N,N-Dimethylbutylamine |
C6H15N |
Molecular Weight:101.190
Density:0.8±0.1 g/cm3
Boiling Point:95.9±3.0 °C at 760 mmHg
Melting Point:-60 °C |
927-62-8 |
| METHYL 4-OXO-3-PHENYL-4H-CHROMENE-2-CARBOXYLATE |
C17H12O4 |
Molecular Weight:280.27500
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
51081-70-0 |
| Acetylhomocysteine thiolactone |
C6H9NO2S |
Molecular Weight:159.206
Density:1.3±0.1 g/cm3
Boiling Point:427.3±34.0 °C at 760 mmHg
Melting Point:109-111 °C |
17896-21-8 |
| Dehydroepiandrosterone |
C19H28O2 |
Molecular Weight:288.424
Density:1.1±0.1 g/cm3
Boiling Point:426.7±45.0 °C at 760 mmHg
Melting Point:146-151ºC |
53-43-0 |
| Dioctylamine |
C16H35N |
Molecular Weight:241.456
Density:0.8±0.1 g/cm3
Boiling Point:297.5±0.0 °C at 760 mmHg
Melting Point:13-16 °C(lit.) |
1120-48-5 |
| Di-sec-butylamine |
C8H19N |
Molecular Weight:129.243
Density:0.8±0.1 g/cm3
Boiling Point:137.4±8.0 °C at 760 mmHg
Melting Point:-70°C |
626-23-3 |
| 3-Methoxy-1-propanol |
C4H10O2 |
Molecular Weight:90.121
Density:0.9±0.1 g/cm3
Boiling Point:158.1±8.0 °C at 760 mmHg
Melting Point:-96.7ºC |
1589-49-7 |
| 3-Bromobenzaldehyde |
C7H5BrO |
Molecular Weight:185.018
Density:1.6±0.1 g/cm3
Boiling Point:235.3±13.0 °C at 760 mmHg
Melting Point:18-21 °C(lit.) |
3132-99-8 |
| Dibenzylhydroxylamine |
C14H15NO |
Molecular Weight:213.275
Density:1.1±0.1 g/cm3
Boiling Point:379.7±31.0 °C at 760 mmHg
Melting Point:125-128 °C(lit.) |
621-07-8 |
| 4,4'-Dithiobis[2-aminobutyric Acid] |
C8H16N2O4S2 |
Molecular Weight:268.354
Density:1.4±0.1 g/cm3
Boiling Point:507.6±50.0 °C at 760 mmHg
Melting Point:≥300 °C |
870-93-9 |
| 2-Fluoroethanol |
C2H5FO |
Molecular Weight:64.059
Density:1.0±0.1 g/cm3
Boiling Point:103.5±0.0 °C at 760 mmHg
Melting Point:−26.5 °C(lit.) |
371-62-0 |
| 1,7-Heptanediol |
C7H16O2 |
Molecular Weight:132.201
Density:0.9±0.1 g/cm3
Boiling Point:262.0±0.0 °C at 760 mmHg
Melting Point:17-19 °C(lit.) |
629-30-1 |
| 2-mercaptoethyl (9Z,12Z)-octadeca-9,12-dienoate |
C20H36O2S |
Molecular Weight:340.56400
Density:0.937g/cm3
Boiling Point:437.2ºC at 760mmHg
Melting Point:N/A |
52147-29-2 |
| Galosemide |
C15H14F3N3O3S |
Molecular Weight:373.35000
Density:1.419g/cm3
Boiling Point:N/A
Melting Point:N/A |
52157-91-2 |
| 1,1,1,3,3,3-hexadeuterio-2-nitro-2-(trideuteriomethyl)propane |
C4H9NO2 |
Molecular Weight:103.12000
Density:1.034 g/mL at 25ºC
Boiling Point:126-127ºC(lit.)
Melting Point:N/A |
52168-52-2 |
| 1H-Benzimidazole-1-carboxylicacid(9CI) |
C8H6N2O2 |
Molecular Weight:162.14500
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
52169-56-9 |
| 2-Methyl-3-phenylacrolein |
C10H10O |
Molecular Weight:146.186
Density:1.0±0.1 g/cm3
Boiling Point:254.6±9.0 °C at 760 mmHg
Melting Point:N/A |
101-39-3 |
| Oleoylethanolamide |
C20H39NO2 |
Molecular Weight:325.529
Density:0.9±0.1 g/cm3
Boiling Point:496.4±38.0 °C at 760 mmHg
Melting Point:50-60ºC |
111-58-0 |
| (2E,4E)-Deca-2,4-dienal |
C10H16O |
Molecular Weight:152.233
Density:0.9±0.1 g/cm3
Boiling Point:244.6±0.0 °C at 760 mmHg
Melting Point:N/A |
25152-84-5 |
| 1-Phenylpiperazine |
C10H14N2 |
Molecular Weight:162.232
Density:1.0±0.1 g/cm3
Boiling Point:287.2±15.0 °C at 760 mmHg
Melting Point:18.8 °C |
92-54-6 |
| p-Formylpyridine |
C6H5NO |
Molecular Weight:107.110
Density:1.1±0.1 g/cm3
Boiling Point:192.3±0.0 °C at 760 mmHg
Melting Point:-4--2°C |
872-85-5 |
| methyl N-(2,6-dimethylphenyl)-DL-alaninate |
C12H17NO2 |
Molecular Weight:207.26900
Density:1.063g/cm3
Boiling Point:302.7ºC at 760mmHg
Melting Point:N/A |
52888-49-0 |
| 4-(methoxymethyl)benzyl chloride |
C9H11ClO |
Molecular Weight:170.63600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
52889-83-5 |
| santene |
C9H14 |
Molecular Weight:122.20700
Density:0.909g/cm3
Boiling Point:140.499ºC at 760 mmHg
Melting Point:N/A |
529-16-8 |
| (4-formyl-3-hydroxyphenyl) acetate |
C9H8O4 |
Molecular Weight:180.15700
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
52924-53-5 |
| 4-iodobenzene-1-thiol |
C6H5IS |
Molecular Weight:236.073
Density:1.9±0.1 g/cm3
Boiling Point:252.1±23.0 °C at 760 mmHg
Melting Point:N/A |
52928-01-5 |
| 2-(TERT-BUTYLSULFONYL)BENZOICACID |
C11H14O4S |
Molecular Weight:242.29100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
5293-55-0 |
| 5-Ethyluracil |
C6H8N2O2 |
Molecular Weight:140.140
Density:1.2±0.1 g/cm3
Boiling Point:N/A
Melting Point:>300 °C(lit.) |
4212-49-1 |
| 4-Methylphenylhydrazine hydrochloride |
C7H11ClN2 |
Molecular Weight:158.629
Density:1.18
Boiling Point:242.8ºC at 760 mmHg
Melting Point:241 ºC |
637-60-5 |
| 2-METHYLCINNAMALDEHYDE |
C10H10O |
Molecular Weight:146.186
Density:1.0±0.1 g/cm3
Boiling Point:259.7±9.0 °C at 760 mmHg
Melting Point:N/A |
93614-78-9 |
| 4-(Benzyloxy)benzaldehyde |
C14H12O2 |
Molecular Weight:212.244
Density:1.1±0.1 g/cm3
Boiling Point:365.8±17.0 °C at 760 mmHg
Melting Point:71-74 °C(lit.) |
4397-53-9 |
| 6-Amino-1,3-dimethyluracil |
C6H9N3O2 |
Molecular Weight:155.155
Density:1.3±0.1 g/cm3
Boiling Point:243.1±43.0 °C at 760 mmHg
Melting Point:295 °C (dec.)(lit.) |
6642-31-5 |
| 2,4,5-Trifluoro-3-methoxybenzoic acid |
C8H5F3O3 |
Molecular Weight:206.119
Density:1.5±0.1 g/cm3
Boiling Point:284.3±35.0 °C at 760 mmHg
Melting Point:105-112 °C(lit.) |
112811-65-1 |
| 4-Fluorobiphenyl |
C12H9F |
Molecular Weight:172.198
Density:1.1±0.1 g/cm3
Boiling Point:253.0±0.0 °C at 760 mmHg
Melting Point:75-79 °C(lit.) |
324-74-3 |
| 1H-Tetrazole-1-acetic acid |
C3H4N4O2 |
Molecular Weight:128.089
Density:1.8±0.1 g/cm3
Boiling Point:381.1±44.0 °C at 760 mmHg
Melting Point:127-129°C |
21732-17-2 |
| 2-Bromothiazole-5-carboxylic acid |
C4H2BrNO2S |
Molecular Weight:208.03
Density:2.1±0.1 g/cm3
Boiling Point:350.0±15.0 °C at 760 mmHg
Melting Point:182ºC (dec.) |
54045-76-0 |
| 5-Isopropyl-2-pyrimidinamine |
C7H11N3 |
Molecular Weight:137.182
Density:1.1±0.1 g/cm3
Boiling Point:278.9±33.0 °C at 760 mmHg
Melting Point:N/A |
98432-17-8 |
| 1-Benzylpiperidine-4-carbaldehyde |
C13H17NO |
Molecular Weight:203.280
Density:1.1±0.1 g/cm3
Boiling Point:299.5±33.0 °C at 760 mmHg
Melting Point:315ºC |
22065-85-6 |
| 5-Fluoropyridin-3-amine |
C5H5FN2 |
Molecular Weight:112.105
Density:1.3±0.1 g/cm3
Boiling Point:217.1±20.0 °C at 760 mmHg
Melting Point:86ºC |
210169-05-4 |
| 3,6-Dichloropicolinic acid |
C6H3Cl2NO2 |
Molecular Weight:191.999
Density:1.6±0.1 g/cm3
Boiling Point:323.7±37.0 °C at 760 mmHg
Melting Point:151-152°C |
1702-17-6 |
| 2,4-Dichloro-6,7-dimethoxyquinazoline |
C10H8Cl2N2O2 |
Molecular Weight:259.089
Density:1.4±0.1 g/cm3
Boiling Point:340.5±42.0 °C at 760 mmHg
Melting Point:172-177 °C |
27631-29-4 |
| 3-(Trifluoromethyl)-4-amino-toluene |
C8H8F3N |
Molecular Weight:175.151
Density:1.2±0.1 g/cm3
Boiling Point:199.9±35.0 °C at 760 mmHg
Melting Point:N/A |
87617-23-0 |