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 |