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 |
4-Amino-2-chloro-5-(1H-tetrazol-5-yl)benzenesulfonamide |
C7H7ClN6O2S |
Molecular Weight:274.688 Density:1.8±0.1 g/cm3 Boiling Point:633.9±65.0 °C at 760 mmHg Melting Point:N/A |
82212-14-4 |
N-octanoyl benzotriazole |
C14H19N3O |
Molecular Weight:245.320 Density:1.1±0.1 g/cm3 Boiling Point:379.3±25.0 °C at 760 mmHg Melting Point:N/A |
58068-80-7 |
3-CHLORO-4-(ISOPROPYLSULFONYL)THIOPHENE-2-CARBOXYLIC ACID |
C8H9ClO4S2 |
Molecular Weight:268.73800 Density:N/A Boiling Point:N/A Melting Point:N/A |
175202-26-3 |
2-(3-Chloropropoxy)-1-methoxy-4-nitrobenzene |
C10H12ClNO4 |
Molecular Weight:245.660 Density:1.3±0.1 g/cm3 Boiling Point:388.3±27.0 °C at 760 mmHg Melting Point:N/A |
92878-95-0 |
4,6-Pyrimidinedicarboxylic acid |
C6H4N2O4 |
Molecular Weight:168.107 Density:1.7±0.1 g/cm3 Boiling Point:497.4±30.0 °C at 760 mmHg Melting Point:238-240°C |
16490-02-1 |
2(1H)-Pyrimidinone,6-amino-5-nitro- |
C4H4N4O3 |
Molecular Weight:156.10000 Density:2.02g/cm3 Boiling Point:553.4ºC at 760 mmHg Melting Point:N/A |
69099-99-6 |
5-(p-Toluenesulfonate)-2,3-O-isopropylidene-2-C-methyl-D-ribonic-gamma-lactone |
C15H18O7S |
Molecular Weight:342.36400 Density:1.293 Boiling Point:N/A Melting Point:N/A |
109715-12-0 |
Methyl 5-bromo-1H-1,2,4-triazole-3-carboxylate |
C4H4BrN3O2 |
Molecular Weight:205.997 Density:1.902±0.06 g/cm3 Boiling Point:352.1±25.0 °C at 760 mmHg Melting Point:N/A |
704911-47-7 |
4-Methyl-2H-isoquinolin-1-one |
C10H9NO |
Molecular Weight:159.18500 Density:N/A Boiling Point:N/A Melting Point:N/A |
77077-83-9 |
6-Methyl-2,4(1H,3H)-quinazolinedione |
C9H8N2O2 |
Molecular Weight:176.172 Density:1.3±0.1 g/cm3 Boiling Point:N/A Melting Point:N/A |
62484-16-6 |
5-Amino[1,3]thiazolo[4,5-d]pyrimidin-2(3H)-one |
C5H4N4OS |
Molecular Weight:168.176 Density:1.7±0.1 g/cm3 Boiling Point:N/A Melting Point:N/A |
848691-22-5 |
2-ETHYLTHIO-5-METHYL-3H-PYRIMIDIN-4-ONE |
C7H10N2OS |
Molecular Weight:170.23200 Density:1.25g/cm3 Boiling Point:274.4ºC at 760mmHg Melting Point:N/A |
13480-95-0 |
4-ETHOXY-2-HYDROXYPYRIMIDINE |
C6H8N2O2 |
Molecular Weight:140.14000 Density:N/A Boiling Point:N/A Melting Point:N/A |
25957-58-8 |
5-O-Methanesulfonate-2,3-O-isopropylidene-2-C-methyl-D-ribonic-γ-lactone |
C10H16O7S |
Molecular Weight:280.29500 Density:1.33 Boiling Point:N/A Melting Point:N/A |
908128-94-9 |
4-Aminoquinazolin-2-ol |
C8H7N3O |
Molecular Weight:161.161 Density:1.5±0.1 g/cm3 Boiling Point:489.6±37.0 °C at 760 mmHg Melting Point:N/A |
50440-88-5 |
3-(4-Nitrobenzyl)-5-hydroxy-3H-imidazole-4-carboxamide |
C11H10N4O4 |
Molecular Weight:262.22200 Density:N/A Boiling Point:N/A Melting Point:N/A |
82439-87-0 |
1,6-Naphthyridin-5(6H)-one,6-methyl-(8CI,9CI) |
C9H8N2O |
Molecular Weight:160.17300 Density:1.229 g/cm3 Boiling Point:340.609ºC at 760 mmHg Melting Point:N/A |
19693-54-0 |
9H-Purin-6-amine, N-cyclopentyl- |
C10H13N5 |
Molecular Weight:203.24400 Density:N/A Boiling Point:N/A Melting Point:N/A |
103626-36-4 |
2-benzyl-1,2,3,4-tetrahydro-benzo[b][1,6]naphthyridine-10-carboxylic acid |
C20H18N2O2 |
Molecular Weight:318.36900 Density:1.296g/cm3 Boiling Point:504.4ºC at 760mmHg Melting Point:N/A |
99117-21-2 |
5-[(4-FLUOROPHENYL)AMINO]-1,3,4-THIADIAZOLE-2-THIOL |
C8H6FN3S2 |
Molecular Weight:227.28200 Density:1.57g/cm3 Boiling Point:316.1ºC at 760mmHg Melting Point:N/A |
14731-24-9 |
4-(4-ETHOXY-PHENYLSULFAMOYL)-BENZOIC ACID |
C15H15NO5S |
Molecular Weight:321.34800 Density:1.387g/cm3 Boiling Point:522.2ºC at 760mmHg Melting Point:N/A |
18813-87-1 |
(2-FLUORO-BENZYL)-HYDRAZINE |
C8H7FO2S |
Molecular Weight:186.20300 Density:1.36g/cm3 Boiling Point:297.6ºC at 760 mmHg Melting Point:N/A |
705-02-2 |
4(1H)-Quinazolinone,3-(4-chlorophenyl)-2,3-dihydro-2-thioxo- |
C14H9ClN2OS |
Molecular Weight:288.75200 Density:1.5g/cm3 Boiling Point:457.3ºC at 760mmHg Melting Point:N/A |
1028-40-6 |
4-CHLORO-2-PYRIDIN-3-YL-5,6,7,8-TETRAHYDRO[1]BENZOTHIENO[2,3-D]PYRIMIDINE |
C15H12ClN3S |
Molecular Weight:301.79400 Density:1.392g/cm3 Boiling Point:407.1ºC at 760 mmHg Melting Point:N/A |
128277-24-7 |
2-CHLORO-N-CYCLOHEX-1-EN-1-YL-N-ETHYLACETAMIDE |
C10H16ClNO |
Molecular Weight:201.69300 Density:1.09g/cm3 Boiling Point:320ºC at 760mmHg Melting Point:N/A |
21417-18-5 |
Butanamide,N-(5-chloro-2-methylphenyl)-3-oxo- |
C11H12ClNO2 |
Molecular Weight:225.67100 Density:1.247g/cm3 Boiling Point:386.1ºC at 760mmHg Melting Point:N/A |
25233-50-5 |
3-(2,3-dimethyl-1H-indol-1-yl)propan-1-amine |
C13H18N2 |
Molecular Weight:202.29500 Density:N/A Boiling Point:362.1ºC at 760mmHg Melting Point:N/A |
39971-86-3 |
7-AMINO-4-METHYL-2H-BENZO[B][1,4]OXAZIN-3(4H)-ONE |
C9H10N2O2 |
Molecular Weight:178.18800 Density:1.299g/cm3 Boiling Point:488.5ºC at 760mmHg Melting Point:141-143ºC |
141068-81-7 |
4-AMINOPHENYLPHOSPHORYLCHOLINE |
C11H20ClN2O4P |
Molecular Weight:310.71400 Density:N/A Boiling Point:N/A Melting Point:270-273ºC |
102185-28-4 |
benzotript |
C18H15ClN2O3 |
Molecular Weight:342.78 Density:N/A Boiling Point:643.7ºC at 760 mmHg Melting Point:N/A |
39544-74-6 |
SODIUM 3-CHLOROBENZOATE |
C7H4ClNaO2 |
Molecular Weight:178.54800 Density:N/A Boiling Point:281.3ºC at 760 mmHg Melting Point:N/A |
17264-88-9 |
2-ETHOXYTETRAHYDROFURAN |
C6H12O2 |
Molecular Weight:116.15800 Density:0.94g/cm3 Boiling Point:171ºC at 760mmHg Melting Point:N/A |
13436-46-9 |
Cholesteryl (pyren-1-yl)hexanoate |
C49H64O2 |
Molecular Weight:685.03100 Density:1.09g/cm3 Boiling Point:755ºC at 760mmHg Melting Point:N/A |
96886-70-3 |
1,3-Dioxepin, 4,7-dihydro-2-phenyl- |
C11H12O2 |
Molecular Weight:176.21200 Density:1.11 g/mL at 25ºC(lit.) Boiling Point:114ºC/3.5 mmHg(lit.) Melting Point:N/A |
2568-24-3 |
Sulfur trioxide N,N-dimethylformamide complex |
C3H7NO4S |
Molecular Weight:153.157 Density:N/A Boiling Point:153ºC at 760 mmHg Melting Point:155-158ºC(lit.) |
29584-42-7 |
ethyl 2-(piperidine-4-carboxamido)acetate hydrochloride |
C10H18N2O3 |
Molecular Weight:214.26200 Density:N/A Boiling Point:N/A Melting Point:N/A |
82827-44-9 |
1-chloro-4-(3-iodopropoxy)benzene |
C9H10ClIO |
Molecular Weight:296.53300 Density:1.673g/cm3 Boiling Point:317ºC at 760mmHg Melting Point:31ºC |
119795-57-2 |
1-[2-nitro-4-(trifluoromethyl)phenyl]pyrrole |
C11H7F3N2O2 |
Molecular Weight:256.18100 Density:N/A Boiling Point:N/A Melting Point:N/A |
136773-58-5 |
2-(4-BROMO-3,5-DIMETHYL-1H-PYRAZOL-1-YL)ETHANETHIOAMIDE |
C7H10BrN3S |
Molecular Weight:248.14300 Density:N/A Boiling Point:N/A Melting Point:N/A |
175202-68-3 |
3,4-Dibromo-1H-pyrrolo[2,3-b]pyridine |
C7H4Br2N2 |
Molecular Weight:275.928 Density:2.2±0.1 g/cm3 Boiling Point:N/A Melting Point:N/A |
1000340-33-9 |
3,5-DIHYDRO-7-NITRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE |
C6H4N4O3 |
Molecular Weight:180.12100 Density:2.026g/cm3 Boiling Point:606.66ºC at 760 mmHg Melting Point:N/A |
93587-26-9 |
3-amino-6-iodopyrazine-2-carboxylic acid |
C5H4IN3O2 |
Molecular Weight:265.00900 Density:2.35g/cm3 Boiling Point:455.682ºC at 760 mmHg Melting Point:N/A |
875781-48-9 |
1-(Benzyloxy)-3-ethynylbenzene |
C15H12O |
Molecular Weight:208.255 Density:1.1±0.1 g/cm3 Boiling Point:336.6±25.0 °C at 760 mmHg Melting Point:N/A |
128133-59-5 |
Stigmastanol |
C29H52O |
Molecular Weight:416.72300 Density:0.948g/cm3 Boiling Point:471.9ºC at 760 mmHg Melting Point:N/A |
83-45-4 |
11-Oxotestosterone |
C19H26O3 |
Molecular Weight:302.408 Density:1.2±0.1 g/cm3 Boiling Point:476.8±45.0 °C at 760 mmHg Melting Point:N/A |
564-35-2 |
β-Estradiol 3-(β-D-glucuronide) sodium salt |
C24H31NaO8 |
Molecular Weight:470.488 Density:N/A Boiling Point:N/A Melting Point:N/A |
14982-12-8 |
2β-Hydroxy Testosterone |
C19H28O3 |
Molecular Weight:304.42400 Density:1.19g/cm3 Boiling Point:476.2ºC at 760 mmHg Melting Point:N/A |
10390-14-4 |
2,4-Di-tert-butyl-6-methylphenol |
C15H24O |
Molecular Weight:220.350 Density:0.9±0.1 g/cm3 Boiling Point:269.0±0.0 °C at 760 mmHg Melting Point:50-52ºC |
616-55-7 |
2,4-Bis(α,α-diMethylbenzyl)phenol |
C24H26O |
Molecular Weight:330.463 Density:1.063 Boiling Point:441.1±14.0 °C at 760 mmHg Melting Point:63-65 °C(lit.) |
2772-45-4 |
2,6-Di-tert-butyl-4-nonylphenol |
C23H40O |
Molecular Weight:332.56300 Density:0.899 g/cm3 Boiling Point:389.6ºC at 760 mmHg Melting Point:N/A |
4306-88-1 |