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 |
| 2-Pyridinecarbonitrile, 5-phenyl-
|
C12H8N2
|
Molecular Weight:180.20500
Density:1.17g/cm3
Boiling Point:363ºC at 760mmHg
Melting Point:93-94 °C
|
39065-45-7
|
| 4-amino-2,6-dinitrotoluene
|
C7H7N3O4
|
Molecular Weight:197.14800
Density:1.497 g/cm3
Boiling Point:382.6ºC at 760 mmHg
Melting Point:N/A
|
19406-51-0
|
| Lucidin
|
C15H10O5
|
Molecular Weight:270.237
Density:1.6±0.1 g/cm3
Boiling Point:585.0±29.0 °C at 760 mmHg
Melting Point:330ºC
|
478-08-0
|
| para-Acetyl-L-phenylalanine
|
C11H14ClNO3
|
Molecular Weight:243.687
Density:1.2±0.1 g/cm3
Boiling Point:396.7±37.0 °C at 760 mmHg
Melting Point:N/A
|
22888-49-9
|
| 3-[(E)-[(2,4-dinitrophenyl)hydrazinylidene]methyl]phenol
|
C13H10N4O5
|
Molecular Weight:302.24200
Density:1.49g/cm3
Boiling Point:526.2ºC at 760mmHg
Melting Point:N/A
|
1160-77-6
|
| 2,5-Heptanedione
|
C7H12O2
|
Molecular Weight:128.16900
Density:0.926 g/cm3
Boiling Point:208.3ºC at 760 mmHg
Melting Point:N/A
|
1703-51-1
|
| heptane-2,6-dione
|
C7H12O2
|
Molecular Weight:128.16900
Density:0.926g/cm3
Boiling Point:212.5ºC at 760mmHg
Melting Point:N/A
|
13505-34-5
|
| 3-(4-HYDROXYPHENYL)-2H-1-BENZOPYRAN-6,7-DIOL
|
C15H12O4
|
Molecular Weight:256.25300
Density:1.439g/cm3
Boiling Point:526.8ºC at 760 mmHg
Melting Point:N/A
|
145917-93-7
|
| 3,4,5,2',4'-Pentahydroxychalcone
|
C15H12O6
|
Molecular Weight:288.252
Density:1.6±0.1 g/cm3
Boiling Point:658.1±55.0 °C at 760 mmHg
Melting Point:N/A
|
2679-65-4
|
| 5-Methoxy-N-methyl-N-(1-methylethyl)-1H-indole-3-ethanamine
|
C15H22N2O
|
Molecular Weight:246.348
Density:1.1±0.1 g/cm3
Boiling Point:390.3±32.0 °C at 760 mmHg
Melting Point:N/A
|
96096-55-8
|
| 1H-Indole-5,6-diol
|
C8H7NO2
|
Molecular Weight:149.147
Density:1.5±0.1 g/cm3
Boiling Point:411.2±25.0 °C at 760 mmHg
Melting Point:N/A
|
3131-52-0
|
| BENZOFURAN-2-CARBONITRILE
|
C9H5NO
|
Molecular Weight:143.14200
Density:1.228g/cm3
Boiling Point:260.846ºC at 760 mmHg
Melting Point:N/A
|
41717-32-2
|
| 2-methylacetoacetic acid
|
C5H8O3
|
Molecular Weight:116.11500
Density:1.125g/cm3
Boiling Point:227.9ºC at 760mmHg
Melting Point:N/A
|
2382-59-4
|
| N-(5-Fluoro-4-methyl-2-pyridinyl)acetamide
|
C8H9FN2O
|
Molecular Weight:168.168
Density:1.2±0.1 g/cm3
Boiling Point:321.4±42.0 °C at 760 mmHg
Melting Point:N/A
|
475060-21-0
|
| 6-Methoxy-1,3-benzothiazole-2-carboxylic acid
|
C9H7NO3S
|
Molecular Weight:209.222
Density:1.5±0.1 g/cm3
Boiling Point:412.3±37.0 °C at 760 mmHg
Melting Point:119-120ºC
|
946-13-4
|
| 4-Chloro-3-iodopyridine
|
C5H3ClIN
|
Molecular Weight:239.441
Density:2.1±0.1 g/cm3
Boiling Point:248.6±20.0 °C at 760 mmHg
Melting Point:69-70ºC
|
89167-34-0
|
| N-Succinimidyl-S-acetylthioacetate
|
C8H9NO5S
|
Molecular Weight:231.226
Density:1.5±0.1 g/cm3
Boiling Point:337.3±44.0 °C at 760 mmHg
Melting Point:84-89ºC
|
76931-93-6
|
| S-Acetylthioacetic Acid
|
C4H6O3S
|
Molecular Weight:134.15400
Density:1.337g/cm3
Boiling Point:251.1ºC at 760mmHg
Melting Point:N/A
|
1190-93-8
|
| 3-(2-Hydroxypropan-2-yl)phenol
|
C9H12O2
|
Molecular Weight:152.19000
Density:1.122g/cm3
Boiling Point:288.2ºC at 760 mmHg
Melting Point:105-106°C
|
7765-97-1
|
| 3-Pyridyl Diethylcarbamate
|
C10H14N2O2
|
Molecular Weight:194.23000
Density:1.096g/cm3
Boiling Point:290.6ºC at 760 mmHg
Melting Point:N/A
|
51581-40-9
|
| 2-NITRO-ALPHA-[(2,2,2-TRIFLUOROETHOXY)METHYL]-IMIDAZOLE-1-ETHANOL
|
C8H10F3N3O4
|
Molecular Weight:269.17800
Density:1.56g/cm3
Boiling Point:449.1ºC at 760mmHg
Melting Point:N/A
|
21787-91-7
|
| 2-(2,2,2-trifluoroethoxymethyl)oxirane
|
C5H7F3O2
|
Molecular Weight:156.10300
Density:1.288g/cm3
Boiling Point:132.7ºC at 760 mmHg
Melting Point:N/A
|
1535-91-7
|
| TETRAHYDRO-5-OXO-2-PHENYLFURAN-3-CARBOXYLIC ACID
|
C11H10O4
|
Molecular Weight:206.19500
Density:1.35g/cm3
Boiling Point:467.5ºC at 760mmHg
Melting Point:N/A
|
13389-88-3
|
| 4-HYDROXY-3,5-DIIODOBENZONITRILE BENZOATE
|
C14H7I2NO2
|
Molecular Weight:475.02000
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
3861-43-6
|
| Ethyl carbamimidate hydrochloride
|
C3H9ClN2O
|
Molecular Weight:124.569
Density:N/A
Boiling Point:95.3ºC at 760mmHg
Melting Point:N/A
|
31407-74-6
|
| 4-Propyl-pyridin-2-ylamine
|
C8H12N2
|
Molecular Weight:136.19400
Density:1.014 g/cm3
Boiling Point:257.4ºC at 760 mmHg
Melting Point:N/A
|
61702-15-6
|
| (2-PHENOXYETHYL)(TRIPHENYL)PHOSPHONIUMBROMIDE
|
C14H11NO
|
Molecular Weight:209.24300
Density:1.203g/cm3
Boiling Point:397.163ºC at 760 mmHg
Melting Point:N/A
|
77084-15-2
|
| 2-methyl-1-benzofuran-5-amine
|
C9H9NO
|
Molecular Weight:147.17400
Density:1.178g/cm3
Boiling Point:282.9ºC at 760mmHg
Melting Point:N/A
|
26210-75-3
|
| 7-Benzofurancarboxylicacid, 2-methyl-
|
C10H8O3
|
Molecular Weight:176.16900
Density:1.303g/cm3
Boiling Point:342.7ºC at 760mmHg
Melting Point:N/A
|
31457-07-5
|
| (2-PHENOXYETHYLTHIO)ACETICACIDHYDRAZIDE
|
C14H11NO
|
Molecular Weight:209.24300
Density:1.203g/cm3
Boiling Point:397.163ºC at 760 mmHg
Melting Point:N/A
|
77083-99-9
|
| 7-Methoxy-2,3-dimethyl-4-nitrobenzofuran
|
C11H11NO4
|
Molecular Weight:221.20900
Density:1.265g/cm3
Boiling Point:373.8ºC at 760mmHg
Melting Point:N/A
|
15868-62-9
|
| 3-methyl-1-benzofuran-5-carboxylic acid
|
C10H8O3
|
Molecular Weight:176.16900
Density:1.303g/cm3
Boiling Point:346ºC at 760 mmHg
Melting Point:N/A
|
501892-99-5
|
| 2,3-dimethyl-1-benzofuran-5-carboxylic acid
|
C11H10O3
|
Molecular Weight:190.19500
Density:1.256g/cm3
Boiling Point:368.7ºC at 760mmHg
Melting Point:N/A
|
3781-93-9
|
| N-(2-chloro-1-benzofuran-3-yl)acetamide
|
C10H8ClNO2
|
Molecular Weight:209.62900
Density:1.384g/cm3
Boiling Point:391.2ºC at 760 mmHg
Melting Point:N/A
|
67382-11-0
|
| 2-Oxo-7-indolinecarboxylic acid
|
C9H7NO3
|
Molecular Weight:177.157
Density:1.4±0.1 g/cm3
Boiling Point:445.0±45.0 °C at 760 mmHg
Melting Point:N/A
|
25369-43-1
|
| ethyl 2-(methylcarbamoyl)pyridine-4-carboxylate
|
C10H12N2O3
|
Molecular Weight:208.21400
Density:1.173g/cm3
Boiling Point:371.4ºC at 760mmHg
Melting Point:N/A
|
332013-42-0
|
| 2,4,6-Trimethoxy-5-nitropyrimidine
|
C7H9N3O5
|
Molecular Weight:215.16300
Density:1.347g/cm3
Boiling Point:407.959ºC at 760 mmHg
Melting Point:N/A
|
83356-02-9
|
| 6-Chloro-2-cyano-3-nitropyridine
|
C6H2ClN3O2
|
Molecular Weight:183.552
Density:1.6±0.1 g/cm3
Boiling Point:347.2±42.0 °C at 760 mmHg
Melting Point:N/A
|
93683-65-9
|
| dehydro-ar-ionene
|
C13H16
|
Molecular Weight:172.266
Density:0.9±0.1 g/cm3
Boiling Point:242.2±30.0 °C at 760 mmHg
Melting Point:N/A
|
30364-38-6
|
| (-)-(1S,4R)-N-FMOC-4-AMINOCYCLOPENT-2-ENECARBOXYLICACID
|
C11H17NO2
|
Molecular Weight:195.25800
Density:N/A
Boiling Point:N/A
Melting Point:N/A
|
137588-59-1
|
| 2-DIMETHYLAMINO-7-NITROFLUORENE
|
C15H14N2O2
|
Molecular Weight:254.28400
Density:1.283g/cm3
Boiling Point:440.1ºC at 760mmHg
Melting Point:N/A
|
19221-04-6
|
| 1-METHYL-5-NITROINDOLINE
|
C9H10N2O2
|
Molecular Weight:178.18800
Density:1.259g/cm3
Boiling Point:334.7ºC at 760mmHg
Melting Point:N/A
|
18711-25-6
|
| ETHYL 5-CYANONICOTINATE
|
C9H8N2O2
|
Molecular Weight:176.17200
Density:1.21g/cm3
Boiling Point:283.8ºC at 760mmHg
Melting Point:88 °C
|
90417-31-5
|
| 6-(Trifluoromethyl)picolinic acid
|
C7H4F3NO2
|
Molecular Weight:191.107
Density:1.5±0.1 g/cm3
Boiling Point:263.0±40.0 °C at 760 mmHg
Melting Point:154-158 °C
|
131747-42-7
|
| 4-N-PROPYLPYRIDINE-2-CARBOXYLIC ACID
|
C9H11NO2
|
Molecular Weight:165.18900
Density:1.143g/cm3
Boiling Point:327.5ºC at 760 mmHg
Melting Point:N/A
|
87999-87-9
|
| 4-butylpyridine-2-carboxylic acid
|
C10H13NO2
|
Molecular Weight:179.21600
Density:1.113 g/cm3
Boiling Point:338.6ºC at 760 mmHg
Melting Point:N/A
|
83282-39-7
|
| 4-(4-MORPHOLINYL)-PICOLINIC ACID
|
C10H12N2O3
|
Molecular Weight:208.21400
Density:1.313g/cm3
Boiling Point:454.1ºC at 760 mmHg
Melting Point:N/A
|
66933-68-4
|
| 3,5-Dibromopicolinic acid
|
C6H3Br2NO2
|
Molecular Weight:280.901
Density:2.2±0.1 g/cm3
Boiling Point:337.6±42.0 °C at 760 mmHg
Melting Point:N/A
|
61830-40-8
|
| 4-tert-butylpyridine-2-carboxylic acid
|
C10H13NO2
|
Molecular Weight:179.21600
Density:1.107g/cm3
Boiling Point:321.3ºC at 760 mmHg
Melting Point:N/A
|
42205-74-3
|
| 4-Methoxy-2-pyridinecarboxylic acid
|
C7H7NO3
|
Molecular Weight:153.135
Density:1.3±0.1 g/cm3
Boiling Point:331.0±22.0 °C at 760 mmHg
Melting Point:197-198ºC
|
29082-91-5
|