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 |
| Bis(2-methoxyethyl) phthalate |
C14H18O6 |
Molecular Weight:282.289
Density:1.2±0.1 g/cm3
Boiling Point:312.5±22.0 °C at 760 mmHg
Melting Point:N/A |
117-82-8 |
| 4-Amino-2,5-dimethoxy-N-methylbenzenesulphonamide |
C9H14N2O4S |
Molecular Weight:246.28300
Density:1.294 g/cm3
Boiling Point:444.1ºC at 760 mmHg
Melting Point:223ºC min. |
49701-24-8 |
| 1,2-Benzenedicarboxamide |
C8H8N2O2 |
Molecular Weight:164.16100
Density:1.294g/cm3
Boiling Point:430.8ºC at 760 mmHg
Melting Point:223°C (dec.) |
88-96-0 |
| Propyleneglycol butyl ether |
C7H16O2 |
Molecular Weight:132.20100
Density:0.885 g/mL at 25 °C
Boiling Point:165-175 °C(lit.)
Melting Point:N/A |
29387-86-8 |
| Sodium diethyldithiocarbamate |
C5H10NNaS2 |
Molecular Weight:171.259
Density:1.086g/cm3
Boiling Point:176.4ºC at 760mmHg
Melting Point:95°C |
148-18-5 |
| Ethyl chloro(phenyl)acetate |
C10H11ClO2 |
Molecular Weight:198.646
Density:1.2±0.1 g/cm3
Boiling Point:258.0±20.0 °C at 760 mmHg
Melting Point:N/A |
4773-33-5 |
| Iron(II) oxalate |
C2FeO4 |
Molecular Weight:143.864
Density:2.3
Boiling Point:365.1ºC at 760 mmHg
Melting Point:190ºC |
516-03-0 |
| 1,4-Dichloro-9,10-anthraquinone |
C14H6Cl2O2 |
Molecular Weight:277.102
Density:1.5±0.1 g/cm3
Boiling Point:455.2±45.0 °C at 760 mmHg
Melting Point:187-189ºC(lit.) |
602-25-5 |
| 3-Amino-5-(methoxycarbonyl)benzoic acid |
C9H9NO4 |
Molecular Weight:195.172
Density:1.4±0.1 g/cm3
Boiling Point:440.4±35.0 °C at 760 mmHg
Melting Point:N/A |
28179-47-7 |
| Pamoic acid disodium |
C23H14Na2O6 |
Molecular Weight:432.333
Density:N/A
Boiling Point:642.7ºC at 760 mmHg
Melting Point:300 °C |
6640-22-8 |
| 5-Chloro-2-phenoxyaniline |
C12H10ClNO |
Molecular Weight:219.667
Density:1.3±0.1 g/cm3
Boiling Point:324.9±27.0 °C at 760 mmHg
Melting Point:41-44 °C(lit.) |
93-67-4 |
| Dimethyl ethylmalonate |
C7H12O4 |
Molecular Weight:160.168
Density:1.1±0.1 g/cm3
Boiling Point:189.1±8.0 °C at 760 mmHg
Melting Point:N/A |
26717-67-9 |
| 1,3-Diphenylguanidine hydrobromide (1:1) |
C13H14BrN3 |
Molecular Weight:292.174
Density:N/A
Boiling Point:364.3ºC at 760 mmHg
Melting Point:N/A |
93982-96-8 |
| 2-Ethoxybenzohydrazide |
C9H12N2O2 |
Molecular Weight:180.204
Density:1.1±0.1 g/cm3
Boiling Point:N/A
Melting Point:62-64ºC |
21018-13-3 |
| Calcium cyanamide |
CCaN2 |
Molecular Weight:80.10210
Density:2.29
Boiling Point:258.5ºC at 760 mmHg
Melting Point:>300 °C(lit.) |
156-62-7 |
| Diethyl ethyl(1-methylpropyl)malonate |
C13H24O4 |
Molecular Weight:244.32700
Density:0.975 g/cm3
Boiling Point:253ºC at 760 mmHg
Melting Point:N/A |
76-71-1 |
| 2',3'-Dideoxyadenosine |
C10H13N5O2 |
Molecular Weight:235.242
Density:1.8±0.1 g/cm3
Boiling Point:539.1±60.0 °C at 760 mmHg
Melting Point:181-184 °C(lit.) |
4097-22-7 |
| Butanoyl chloride, 2-methyl- |
C5H9ClO |
Molecular Weight:120.57700
Density:0.972 g/mL at 25ºC(lit.)
Boiling Point:117-121ºC(lit.)
Melting Point:N/A |
5856-79-1 |
| N-ethyl-N-chloroethyl aniline |
C10H14ClN |
Molecular Weight:183.678
Density:1.1±0.1 g/cm3
Boiling Point:259.7±23.0 °C at 760 mmHg
Melting Point:91-93 °C(lit.) |
92-49-9 |
| trans-4-Methylcyclohexanamine hydrochloride |
C7H15N |
Molecular Weight:113.201
Density:0.8±0.1 g/cm3
Boiling Point:149.3±8.0 °C at 760 mmHg
Melting Point:N/A |
33483-65-7 |
| ammonium sulfite |
H8N2O3S |
Molecular Weight:116.140
Density:1.41（25℃）
Boiling Point:150ºC
Melting Point:60ºC |
10196-04-0 |
| 2-Chloromethyl-4-(3-methoxypropoxy)-3-methylpyridin |
C11H16ClNO2 |
Molecular Weight:229.703
Density:1.1±0.1 g/cm3
Boiling Point:328.2±37.0 °C at 760 mmHg
Melting Point:N/A |
117977-20-5 |
| THIOGLYCOLIC ACID N-BUTYL ESTER |
C6H12O2S |
Molecular Weight:148.22300
Density:1,03 g/cm3
Boiling Point:194°C
Melting Point:N/A |
10047-28-6 |
| m-tolidine |
C14H16N2 |
Molecular Weight:212.290
Density:1.1±0.1 g/cm3
Boiling Point:344.4±37.0 °C at 760 mmHg
Melting Point:105-106ºC |
84-67-3 |
| 7-Keto-dehydroepiandrosterone |
C19H26O3 |
Molecular Weight:302.408
Density:1.2±0.1 g/cm3
Boiling Point:477.1±45.0 °C at 760 mmHg
Melting Point:240.0-244.0ºC |
566-19-8 |
| (E)Ethyl 4-(3,4-dimethoxyphenyl)-4-oxo-2-butenoate |
C14H16O5 |
Molecular Weight:264.27400
Density:1.138g/cm3
Boiling Point:393.2ºC at 760 mmHg
Melting Point:87.0-91.0ºC |
80937-23-1 |
| 7-TMCA |
C10H12N6O3S2 |
Molecular Weight:328.371
Density:2.0±0.1 g/cm3
Boiling Point:695.2±65.0 °C at 760 mmHg
Melting Point:890°C |
24209-38-9 |
| 5-(2-Hydroxyethylamino)-2-methoxylaniline sulfate |
C9H16N2O6S |
Molecular Weight:280.298
Density:N/A
Boiling Point:600ºC at 760 mmHg
Melting Point:150-154ºC |
83763-48-8 |
| Lead(2+) dioxido(dioxo)chromium |
CrO4Pb |
Molecular Weight:323.19400
Density:6,3 g/cm3
Boiling Point:N/A
Melting Point:844°C |
7758-97-6 |
| Ethylene-vinyl acetate copolymer |
(C4H6O2.C2H4)x |
Molecular Weight:114.14200
Density:0.948 g/mL at 25ºC
Boiling Point:170.6ºC at 760mmHg
Melting Point:99ºC |
24937-78-8 |
| 2,4-Dihydroxy-N-(2-hydroxyethyl)benzamide |
C9H11NO4 |
Molecular Weight:197.18800
Density:1.401 g/cm3
Boiling Point:547.1ºC at 760 mmHg
Melting Point:163-165 °C(lit.) |
24207-41-8 |
| N-Ethyl-N,N-dimethyl-1-dodecanaminium bromide |
C16H36BrN |
Molecular Weight:322.368
Density:N/A
Boiling Point:N/A
Melting Point:185-188ºC |
68207-00-1 |
| p-Phenylpropiophenone |
C15H14O |
Molecular Weight:210.27100
Density:1.037 g/cm3
Boiling Point:344 °C
Melting Point:96 °C |
37940-57-1 |
| 2-Ethylhexyl chloroformate |
C9H17ClO2 |
Molecular Weight:192.68300
Density:0.981 g/mL at 25 °C(lit.)
Boiling Point:106-107 °C30 mm Hg(lit.)
Melting Point:-50ºC |
24468-13-1 |
| 2-(2-Amino-5-bromobenzoyl)pyridine |
C12H9BrN2O |
Molecular Weight:277.117
Density:1.5±0.1 g/cm3
Boiling Point:451.2±40.0 °C at 760 mmHg
Melting Point:98-100ºC |
1563-56-0 |
| 2,5-DIMETHYLRESORCINOL |
C8H10O2 |
Molecular Weight:138.16400
Density:1.162g/cm3
Boiling Point:277 °C(lit.)
Melting Point:157-162 °C(lit.) |
488-87-9 |
| 7-Amino-3-(1,2,3-triazol-4-ylthio)methyl cephalosporanic acid |
C10H11N5O3S2 |
Molecular Weight:313.356
Density:1.8±0.1 g/cm3
Boiling Point:723.3±60.0 °C at 760 mmHg
Melting Point:N/A |
37539-03-0 |
| SODIUM DICHROMATE |
Cr2Na2O7 |
Molecular Weight:261.96800
Density:1.267 g/mL at 25 °C(lit.)
Boiling Point:250-251 °C(lit.)
Melting Point:356.7ºC |
10588-01-9 |
| chromium(III) phosphate |
CrO4P |
Molecular Weight:146.967
Density:2.12 g/mL at 25ºC(lit.)
Boiling Point:N/A
Melting Point:120-140ºC (dec.)(lit.) |
7789-04-0 |
| C.I. Solvent Orange 2 |
C17H14N2O |
Molecular Weight:262.30600
Density:1.15 g/cm3
Boiling Point:464.9ºC at 760 mmHg
Melting Point:124-126°C |
2646-17-5 |
| N-Phenylnicotinamide |
C12H10N2O |
Molecular Weight:198.221
Density:1.2±0.1 g/cm3
Boiling Point:265.8±13.0 °C at 760 mmHg
Melting Point:114-118 °C(lit.) |
1752-96-1 |
| N-Methylparoxetine |
C20H22FNO3 |
Molecular Weight:343.392
Density:1.2±0.1 g/cm3
Boiling Point:443.7±45.0 °C at 760 mmHg
Melting Point:111 °C |
110429-36-2 |
| 1-Benzothiophene-3-ol |
C8H6OS |
Molecular Weight:150.198
Density:1.3±0.1 g/cm3
Boiling Point:301.6±15.0 °C at 760 mmHg
Melting Point:N/A |
520-72-9 |
| Chlorflurecol |
C14H9ClO3 |
Molecular Weight:260.67200
Density:1.552 g/cm3
Boiling Point:524.2ºC at 760 mmHg
Melting Point:N/A |
2464-37-1 |
| trans-4-Methylcyclohexanamine hydrochloride (1:1) |
C7H16ClN |
Molecular Weight:149.662
Density:N/A
Boiling Point:195.9ºC at 760 mmHg
Melting Point:224ºC (dec.) |
100959-19-1 |
| Diethyl isobutylmalonate |
C11H20O4 |
Molecular Weight:216.274
Density:1.0±0.1 g/cm3
Boiling Point:255.0±0.0 °C at 760 mmHg
Melting Point:N/A |
10203-58-4 |
| 1,1-Dimethylhydrazine |
C2H8N2 |
Molecular Weight:60.098
Density:0.8±0.1 g/cm3
Boiling Point:63.9±9.0 °C at 760 mmHg
Melting Point:-57.2 °C |
57-14-7 |
| 4,4'-Oxydibenzenesulfonohydrazide |
C12H14N4O5S2 |
Molecular Weight:358.393
Density:1.5±0.1 g/cm3
Boiling Point:590.0±60.0 °C at 760 mmHg
Melting Point:160-161 °C (dec.)(lit.) |
80-51-3 |
| 4,4'-cyclohexane-1,1-diyldianiline |
C18H22N2 |
Molecular Weight:266.381
Density:1.1±0.1 g/cm3
Boiling Point:450.9±38.0 °C at 760 mmHg
Melting Point:110 °C |
3282-99-3 |
| 2,4,5-Trimethylbenzoic Acid |
C10H12O2 |
Molecular Weight:164.201
Density:1.1±0.1 g/cm3
Boiling Point:303.7±11.0 °C at 760 mmHg
Melting Point:150-153 °C(lit.) |
528-90-5 |