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-Menthane, trans- |
C10H20 |
Molecular Weight:140.266 Density:0.8±0.1 g/cm3 Boiling Point:168.2±7.0 °C at 760 mmHg Melting Point:N/A |
1678-82-6 |
cis-3-Hexene |
C6H12 |
Molecular Weight:84.160 Density:0.7±0.1 g/cm3 Boiling Point:65.6±7.0 °C at 760 mmHg Melting Point:-137.82°C |
7642-09-3 |
cis-1,2-Dimethylcyclopentane |
C7H14 |
Molecular Weight:98.186 Density:0.8±0.1 g/cm3 Boiling Point:97.2±7.0 °C at 760 mmHg Melting Point:N/A |
1192-18-3 |
1,3-Dimethylcyclopentane |
C7H14 |
Molecular Weight:98.186 Density:0.8±0.1 g/cm3 Boiling Point:97.2±7.0 °C at 760 mmHg Melting Point:N/A |
1759-58-6 |
trans-1,2-Dimethylcyclohexane |
C8H16 |
Molecular Weight:112.213 Density:0.8±0.1 g/cm3 Boiling Point:125.9±7.0 °C at 760 mmHg Melting Point:-89ºC(lit.) |
6876-23-9 |
2-(6-nitro-1H-indol-3-yl)acetonitrile |
C10H7N3O2 |
Molecular Weight:201.18100 Density:1.437g/cm3 Boiling Point:470.7ºC at 760 mmHg Melting Point:N/A |
7255-88-1 |
Nortriptyline Hydrochloride |
C19H22ClN |
Molecular Weight:299.838 Density:N/A Boiling Point:403.4ºC at 760 mmHg Melting Point:217-220ºC |
894-71-3 |
1H-Pyrrole-2,5-dione,1,1'-(1,2-phenylene)bis- |
C14H8N2O4 |
Molecular Weight:268.22400 Density:1.567g/cm3 Boiling Point:459.7ºC at 760mmHg Melting Point:245-247ºC (dec.)(lit.) |
13118-04-2 |
mtt formazan |
C18H17N5S |
Molecular Weight:335.426 Density:1.2±0.1 g/cm3 Boiling Point:493.1±48.0 °C at 760 mmHg Melting Point:169 °C |
23305-68-2 |
(+)-Metamfetamine hydrochloride |
C10H16ClN |
Molecular Weight:185.694 Density:N/A Boiling Point:215.5ºC at 760mmHg Melting Point:166-168ºC |
51-57-0 |
Iron(II,III) oxide |
Fe3O4-- |
Molecular Weight:231.533 Density:4.8-5.1 g/mL at 25 °C(lit.) Boiling Point:N/A Melting Point:1538 °C(lit.) |
1317-61-9 |
anisyl phenylacetate |
C16H16O3 |
Molecular Weight:256.29600 Density:1.129g/cm3 Boiling Point:374.8ºC at 760mmHg Melting Point:N/A |
102-17-0 |
Guanosine-5'-triphosphate disodium salt |
C10H14N5Na2O14P3 |
Molecular Weight:567.144 Density:N/A Boiling Point:1028.3ºC at 760mmHg Melting Point:180°C |
56001-37-7 |
Potassium 4-nitrophenyl sulfate |
C6H4KNO6S |
Molecular Weight:257.262 Density:N/A Boiling Point:N/A Melting Point:246-250 °C(lit.) |
6217-68-1 |
CHAPSO |
C32H58N2O8S |
Molecular Weight:630.877 Density:N/A Boiling Point:N/A Melting Point:184-186 °C(lit.) |
82473-24-3 |
Lucifer Yellow CH dilithium salt |
C13H9Li2N5O9S2 |
Molecular Weight:457.25100 Density:N/A Boiling Point:N/A Melting Point:N/A |
67769-47-5 |
Anhydrotetracycline Hydrochloride |
C22H23ClN2O7 |
Molecular Weight:462.880 Density:N/A Boiling Point:618.6ºC at 760 mmHg Melting Point:222.8ºC |
13803-65-1 |
Lignocerol |
C24H50O |
Molecular Weight:354.653 Density:0.8±0.1 g/cm3 Boiling Point:394.5±5.0 °C at 760 mmHg Melting Point:75-77 °C |
506-51-4 |
N,N-Dimethylguanidine |
C3H9N3 |
Molecular Weight:87.12370 Density:N/A Boiling Point:N/A Melting Point:N/A |
6145-42-2 |
12-hydroxydodecanoic acid |
C12H24O3 |
Molecular Weight:216.31700 Density:0.988g/cm3 Boiling Point:359.2ºC at 760 mmHg Melting Point:85-88ºC(lit.) |
505-95-3 |
Movens |
C14H10Cl2NNaO2 |
Molecular Weight:336.146 Density:N/A Boiling Point:399.4ºC at 760 mmHg Melting Point:287 °C |
6385-02-0 |
POPOP |
C24H16N2O2 |
Molecular Weight:364.40 Density:1.2±0.1 g/cm3 Boiling Point:585.1±60.0 °C at 760 mmHg Melting Point:242-246 °C(lit.) |
1806-34-4 |
Ammonium chronate |
CrH8N2O4 |
Molecular Weight:152.07100 Density:1.91 g/mL at 25 °C(lit.) Boiling Point:N/A Melting Point:180°C (dec.) |
7788-98-9 |
2,2-Diethoxyacetophenone |
C12H16O3 |
Molecular Weight:208.25400 Density:1.034 g/mL at 25 °C(lit.) Boiling Point:131-134 °C10 mm Hg(lit.) Melting Point:N/A |
6175-45-7 |
Mefexamide |
C15H24N2O3 |
Molecular Weight:280.36 Density:1.0586 (rough estimate) Boiling Point:460.4ºC at 760 mmHg Melting Point:N/A |
1227-61-8 |
(9S)-Cinchonan-9-ol sulfate (2:1) |
C38H46N4O6S |
Molecular Weight:686.860 Density:1.61g/cm3 Boiling Point:169 °C(lit.) Melting Point:38-40 °C(lit.) |
5949-16-6 |
Sodium laurate |
C12H23NaO2 |
Molecular Weight:222.300 Density:1.102 g/cm3 Boiling Point:296.1ºC at 760 mmHg Melting Point:43.8ºC |
629-25-4 |
Dimethyl sulfite |
C2H6O3S |
Molecular Weight:110.132 Density:1.3±0.1 g/cm3 Boiling Point:126.0±0.0 °C at 760 mmHg Melting Point:N/A |
616-42-2 |
dimethyl popop |
C26H20N2O2 |
Molecular Weight:392.44900 Density:1.17g/cm3 Boiling Point:571.7ºC at 760mmHg Melting Point:233-235 °C(lit.) |
3073-87-8 |
Flucindole |
C14H16F2N2 |
Molecular Weight:250.28700 Density:1.25g/cm3 Boiling Point:365.1ºC at 760 mmHg Melting Point:N/A |
40594-09-0 |
benzo[b][1,4]benzoxazepine |
C13H9NO |
Molecular Weight:195.21700 Density:1.16g/cm3 Boiling Point:329.3ºC at 760mmHg Melting Point:N/A |
257-07-8 |
Barium diacetate |
C2H4BaO2++ |
Molecular Weight:255.415 Density:2.46 Boiling Point:117.1ºC at 760 mmHg Melting Point:450ºC |
543-80-6 |
Tricyclo[3.2.1.02,4]oct-6-ene-3-carboxylicacid (7CI) |
C9H10O2 |
Molecular Weight:150.17400 Density:1.371g/cm3 Boiling Point:289.3ºC at 760mmHg Melting Point:N/A |
90820-03-4 |
Dodecahydro-1H-fluorene |
C13H22 |
Molecular Weight:178.314 Density:0.9±0.1 g/cm3 Boiling Point:253.5±7.0 °C at 760 mmHg Melting Point:15°C(lit.) |
5744-03-6 |
5-Chloro-2,3-diphenyl-1H-indole |
C20H14ClN |
Molecular Weight:303.785 Density:1.2±0.1 g/cm3 Boiling Point:478.1±33.0 °C at 760 mmHg Melting Point:N/A |
52598-02-4 |
2,5-Furandione-styrene ammoniate (1:1:1) |
C12H13NO3 |
Molecular Weight:219.236 Density:1.080 g/cm3 Boiling Point:145.2ºC at 760 mmHg Melting Point:160ºC |
9011-13-6 |
N,N-Diethylpropan-1,3-diamin |
C7H18N2 |
Molecular Weight:130.231 Density:0.8±0.1 g/cm3 Boiling Point:170.7±8.0 °C at 760 mmHg Melting Point:-60ºC |
10061-68-4 |
Benzoic acid,5-azido-2-nitro- |
C7H4N4O4 |
Molecular Weight:208.13100 Density:N/A Boiling Point:N/A Melting Point:N/A |
60117-34-2 |
Urea,N-(hexahydro-6-methyl-2-oxo-4-pyrimidinyl)- |
C6H12N4O2 |
Molecular Weight:172.18500 Density:1.3g/cm3 Boiling Point:454.3ºC at 760mmHg Melting Point:N/A |
1129-42-6 |
Europium tris(acetylacetonate) |
C15H21EuO6-- |
Molecular Weight:449.28800 Density:N/A Boiling Point:187.6ºC at 760mmHg Melting Point:187-189ºC |
14284-86-7 |
2,4-Pentanedione-ruthenium (3:1) |
C15H24O6Ru |
Molecular Weight:401.418 Density:N/A Boiling Point:187.6ºC at 760 mmHg Melting Point:230-235ºC |
14284-93-6 |
yttrium acetylacetonate |
C15H24O6Y |
Molecular Weight:389.25300 Density:N/A Boiling Point:138.4ºC at 760mmHg Melting Point:138-140ºC |
15554-47-9 |
4-hydroxy-1-methyl-piperidine-4-carbonitrile |
C7H12N2O |
Molecular Weight:140.18300 Density:1.12g/cm3 Boiling Point:298.6ºC at 760 mmHg Melting Point:N/A |
20734-30-9 |
L-Aspartic acid,3-hydroxy-, (3S)- |
C4H7NO5 |
Molecular Weight:149.10 Density:1.738 g/cm3 Boiling Point:368.7ºCat 760 mmHg Melting Point:N/A |
7298-99-9 |
2H-Thiopyran-3-ol,tetrahydro- |
C5H10OS |
Molecular Weight:118.19700 Density:1.148g/cm3 Boiling Point:218.8ºC at 760mmHg Melting Point:N/A |
22072-19-1 |
methyl p-tolyl sulfoxide |
C8H10OS |
Molecular Weight:154.229 Density:1.2±0.1 g/cm3 Boiling Point:282.4±19.0 °C at 760 mmHg Melting Point:44-46ºC(lit.) |
934-72-5 |
Methyl benzoylsalicylate |
C15H12O4 |
Molecular Weight:256.25300 Density:1.215g/cm3 Boiling Point:385.6ºC at 760 mmHg Melting Point:N/A |
610-60-6 |
2-Amino-5-nitro benzamide |
C7H7N3O3 |
Molecular Weight:181.149 Density:1.5±0.1 g/cm3 Boiling Point:358.8±22.0 °C at 760 mmHg Melting Point:N/A |
16313-65-8 |
1-Naphthalenecarboxylicacid, 5-nitro-, ethyl ester |
C13H11NO4 |
Molecular Weight:245.23100 Density:1.292g/cm3 Boiling Point:390.1ºC at 760mmHg Melting Point:N/A |
91901-43-8 |
poly(propylene glycol) |
C3H8O6 |
Molecular Weight:140.09200 Density:1.09 g/mL at 25ºC Boiling Point:N/A Melting Point:-40ºC |
25791-96-2 |