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 |
| 8-CHLORO-1-CYCLOPROPYL-6,7-DIFLUORO-4-OXO-1,4-DIHYDROQUINOLINE-3-CARBOXYLIC ACID |
C13H8ClF2NO3 |
Molecular Weight:299.65700
Density:1.716 g/cm3
Boiling Point:466.648ºC at 760 mmHg
Melting Point:194-195ºC |
101987-89-7 |
| Methyl 3-amino-2,2-dimethylpropanoate |
C6H13NO2 |
Molecular Weight:131.17300
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
25307-82-8 |
| Ethyl 2,3-dioxobutanoate |
C6H8O4 |
Molecular Weight:144.12500
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1723-25-7 |
| 5-(Methylamino)-2-nitrobenzaldehyde |
C8H8N2O3 |
Molecular Weight:180.16100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1289163-05-8 |
| (5-METHYL-1H-PYRAZOL-4-YL)BORONIC ACID |
C4H7BN2O2 |
Molecular Weight:125.92200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
1093961-41-1 |
| 6-Chloro-5-(trifluoromethyl)-2-pyridinamine |
C6H4ClF3N2 |
Molecular Weight:196.558
Density:1.5±0.1 g/cm3
Boiling Point:264.5±40.0 °C at 760 mmHg
Melting Point:N/A |
79456-28-3 |
| N1-(P-TOLYL)BENZENE-1,4-DIAMINE |
C13H14N2 |
Molecular Weight:198.26400
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
33227-76-8 |
| 5-Methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid |
C7H7NO3 |
Molecular Weight:153.135
Density:1.3±0.1 g/cm3
Boiling Point:371.2±42.0 °C at 760 mmHg
Melting Point:327-329°C |
66909-27-1 |
| 7-Iodoquinazoline-2,4(1H,3H)-dione |
C8H5IN2O2 |
Molecular Weight:288.042
Density:2.0±0.1 g/cm3
Boiling Point:N/A
Melting Point:N/A |
959236-72-7 |
| 5-Methyl-1H-pyrrole-3-carboxylic acid |
C6H7NO2 |
Molecular Weight:125.12500
Density:1.295g/cm3
Boiling Point:326.3ºC at 760mmHg
Melting Point:N/A |
100047-52-7 |
| 1-benzyl-4-methylpiperidin-4-ol |
C13H19NO |
Molecular Weight:205.29600
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
3970-66-9 |
| 2-Ethynyl-5-(trifluoromethyl)pyridine |
C8H4F3N |
Molecular Weight:171.11900
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
379670-42-5 |
| 5-Chloro-2-ethynylpyrimidine |
C6H3ClN2 |
Molecular Weight:138.554
Density:1.3±0.1 g/cm3
Boiling Point:270.5±32.0 °C at 760 mmHg
Melting Point:N/A |
1196156-95-2 |
| (3-Amino-2-pyridinyl)acetic acid |
C7H8N2O2 |
Molecular Weight:152.151
Density:1.4±0.1 g/cm3
Boiling Point:391.0±27.0 °C at 760 mmHg
Melting Point:N/A |
80352-63-2 |
| 2-DIFLUOROMETHOXYPHENYL ISOTHIOCYANATE |
C8H5F2NOS |
Molecular Weight:201.19300
Density:1.32 g/mL at 25ºC(lit.)
Boiling Point:245-249ºC(lit.)
Melting Point:N/A |
101856-90-0 |
| DISPERSE RED 1 METHACRYLATE |
C20H22N4O4 |
Molecular Weight:382.41300
Density:N/A
Boiling Point:N/A
Melting Point:78-83ºC(lit.) |
103553-48-6 |
| 3' 5'-DIETHOXYACETOPHENONE |
C12H16O3 |
Molecular Weight:208.25400
Density:1.031g/cm3
Boiling Point:304.6ºC at 760 mmHg
Melting Point:64-67ºC(lit.) |
103604-53-1 |
| (S)-(+)-2-DECANOL |
C6H14O3S |
Molecular Weight:166.23900
Density:1.07g/cm3
Boiling Point:253.7ºC at 760mmHg
Melting Point:N/A |
104418-40-8 |
| Methyl 3-methoxy-2-(2-methoxy-2-oxoethoxy)benzoate |
C12H14O6 |
Molecular Weight:254.23600
Density:1.2g/cm3
Boiling Point:345.6ºC at 760 mmHg
Melting Point:71-74ºC(lit.) |
104796-24-9 |
| TETRAKIS(ACETATO)BIS(CYCLOPENTADIENYL)D& |
C18H18O8V2 |
Molecular Weight:464.21400
Density:N/A
Boiling Point:N/A
Melting Point:200ºC (dec.)(lit.) |
11077-92-2 |
| CALCIUM CYCLOHEXANEBUTYRATE |
C20H34CaO4 |
Molecular Weight:378.56000
Density:N/A
Boiling Point:N/A
Melting Point:260ºC (dec.)(lit.) |
110861-66-0 |
| (+)-DIP-BROMIDE(TM) |
C20H34BBr |
Molecular Weight:365.19900
Density:1.12g/cm3
Boiling Point:373.4ºC at 760mmHg
Melting Point:62-72ºC(lit.) |
112246-74-9 |
| disodium,5-[2-(1,4,6,9-tetraoxa-5-silanuidaspiro[4.4]nonan-5-yloxy)ethoxy]-1,4,6,9-tetraoxa-5-silanuidaspiro[4.4]nonane |
C10H20Na2O10Si2 |
Molecular Weight:402.41000
Density:N/A
Boiling Point:N/A
Melting Point:>350ºC(lit.) |
137704-78-0 |
| tris(2-(methylamino)ethyl)amine 97 |
C9H24N4 |
Molecular Weight:188.31400
Density:0.896 g/mL at 25ºC(lit.)
Boiling Point:77-78ºC/0.1 mmHg(lit.)
Melting Point:N/A |
65604-89-9 |
| POLY(STYRENE-CO-MALEIC ACID), PARTIAL SEC-BUTYL/METHYL MIXED ESTER |
C25H28O11 |
Molecular Weight:504.48300
Density:1.14-1.16 g/mL at 25ºC (dry film)(lit.)
Boiling Point:281.4ºC at 760 mmHg
Melting Point:N/A |
65652-36-0 |
| 3-ETHYL-2,2-DIMETHYL-3-PENTANOL |
C9H20O |
Molecular Weight:144.25400
Density:0.852 g/mL at 25ºC(lit.)
Boiling Point:174ºC(lit.)
Melting Point:-19ºC(lit.) |
66793-96-2 |
| TRANS,TRANS-1-CHLORO-3,7,11-TRIMETHYL-2,6,10-DODECATRIENE |
C15H25Cl |
Molecular Weight:240.81200
Density:0.916 g/mL at 25ºC(lit.)
Boiling Point:59-60ºC2.4 mm Hg(lit.)
Melting Point:N/A |
67023-84-1 |
| L-AZIRIDINE-2-CARBOXYLIC ACID LITHIUMSALT |
C3H4LiNO2 |
Molecular Weight:93.01040
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
67413-27-8 |
| 1-METHOXY-2-NAPHTHALENEMETHANOL |
C12H12O2 |
Molecular Weight:188.22200
Density:1.166g/cm3
Boiling Point:347.2ºC at 760 mmHg
Melting Point:67-70ºC(lit.) |
76635-76-2 |
| (S)-(+)-2-AMINO-2-PHENYLBUTYRICACID |
C16H17NO2S |
Molecular Weight:287.37700
Density:1.271g/cm3
Boiling Point:434.381ºC at 760 mmHg
Melting Point:92-94ºC(lit.) |
62596-64-9 |
| 2,3-DIBENZYL-1,3-BUTADIENE |
C18H18 |
Molecular Weight:234.33600
Density:0.981g/cm3
Boiling Point:359.3ºC at 760 mmHg
Melting Point:86-88ºC (dec.)(lit.) |
62640-74-8 |
| 1-[4-[[4-(dioctylamino)phenyl]diazenyl]-3-nitrophenyl]-2,2,2-trifluoroethanone |
C30H41F3N4O3 |
Molecular Weight:562.66700
Density:1.14g/cm3
Boiling Point:626.7ºC at 760 mmHg
Melting Point:N/A |
684281-90-1 |
| duolite c-26 ion-exchange resin |
C18H18Na |
Molecular Weight:257.32500
Density:1.3 g/mL at 25ºC(lit.)
Boiling Point:207.3ºC at 760 mmHg
Melting Point:N/A |
68441-33-8 |
| TETRAOCTYLAMMONIUM FLUORIDE 0.15M |
C32H68FN |
Molecular Weight:485.88700
Density:0.99 g/mL at 25ºC
Boiling Point:N/A
Melting Point:N/A |
69078-23-5 |
| 2-(9H-CARBAZOL-9-YL)ETHYL ACRYLATE |
C17H15NO2 |
Molecular Weight:265.30700
Density:1.13g/cm3
Boiling Point:384.1ºC at 760 mmHg
Melting Point:77-81ºC(lit.) |
6915-68-0 |
| L-Arginine-7-amido-4-methylcoumarin hydrochloride |
C16H22ClN5O3 |
Molecular Weight:367.83100
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
69304-16-1 |
| 2,6-diamino-7,9-dihydropurin-8-one,sulfuric acid,hydrate |
C10H16N12O7S |
Molecular Weight:448.37500
Density:N/A
Boiling Point:821.8ºC at 760 mmHg
Melting Point:324-329ºC(lit.) |
698998-94-6 |
| manganese(2+),diperchlorate,hydrate |
ClH3MnO5 |
Molecular Weight:173.41200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
698999-57-4 |
| CERIUM(IV) TRIFLUOROMETHANESULFONATE HY& |
C4CeF12O12S4 |
Molecular Weight:736.39200
Density:N/A
Boiling Point:N/A
Melting Point:N/A |
698999-65-4 |
| BARIUM TETRACYANOPLATINATE(II) DIHYDRAT& |
C4H2BaN4OPt |
Molecular Weight:454.49000
Density:3.05 g/mL at 25ºC(lit.)
Boiling Point:N/A
Melting Point:100ºC(lit.) |
699012-72-1 |
| dichloronickel,ethane-1,2-diamine,hydrate |
C6H26Cl2N6NiO |
Molecular Weight:327.91000
Density:N/A
Boiling Point:N/A
Melting Point:170ºC (dec.)(lit.) |
699012-90-3 |
| Chloromethyl 4-chlorophenyl sulfide |
C7H6Cl2S |
Molecular Weight:193.094
Density:1.3±0.1 g/cm3
Boiling Point:261.9±0.0 °C at 760 mmHg
Melting Point:21.5°C |
7205-90-5 |
| (+)-2,2-DIMETHYL-4,5-((DIPHENYLPHOSPHINO)DIMETHYL)DIOXOLANE |
C11H14O3 |
Molecular Weight:194.22700
Density:1.119g/cm3
Boiling Point:315.296ºC at 760 mmHg
Melting Point:N/A |
72656-47-4 |
| (-)-(18-CROWN-6)-2 3 11 12-TETRACARBOXY& |
C16H24O14 |
Molecular Weight:440.35300
Density:1.4g/cm3
Boiling Point:798.884ºC at 760 mmHg
Melting Point:208-210ºC(lit.) |
73891-15-3 |
| 3,4,4-trimethyl-1-(4-methylphenyl)sulfonylimidazolidine |
C13H20N2O2S |
Molecular Weight:268.37500
Density:1.152g/cm3
Boiling Point:367.8ºC at 760 mmHg
Melting Point:66-67ºC(lit.) |
73955-61-0 |
| 4-Iodobutanoic acid |
C4H7IO2 |
Molecular Weight:214.002
Density:2.0±0.1 g/cm3
Boiling Point:273.2±23.0 °C at 760 mmHg
Melting Point:37-40ºC(lit.) |
7425-27-6 |
| 5-PHENYL-2-(4-PYRIDYL)OXAZOLE |
C14H10N2O |
Molecular Weight:222.24200
Density:1.174g/cm3
Boiling Point:421.3ºC at 760 mmHg
Melting Point:N/A |
74718-16-4 |
| 3-CHLORO-N N-BIS(TRIMETHYLSILYL)ANILINE& |
C12H22ClNSi2 |
Molecular Weight:271.93400
Density:0.981 g/mL at 25ºC(lit.)
Boiling Point:85ºC0.4 mm Hg(lit.)
Melting Point:N/A |
7522-27-2 |
| 3 6-DIBUTOXY-1 2-BENZENEDICARBONITRILE |
C16H20N2O2 |
Molecular Weight:272.34200
Density:1.07g/cm3
Boiling Point:447.4ºC at 760 mmHg
Melting Point:N/A |
75942-37-9 |
| 3 6-DIOCTYLOXY-1 2-BENZENEDICARBONITRIL& |
C24H36N2O2 |
Molecular Weight:384.55500
Density:1g/cm3
Boiling Point:537.6ºC at 760 mmHg
Melting Point:143-147ºC |
75942-39-1 |