CAS Number Index

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
Methyl 4-methylcinnamate	C₁₁H₁₂O₂	Molecular Weight:176.212 Density:1.057 Boiling Point:273 ºC Melting Point:60-61ºC	20754-20-5
ETHYL 2-(1-BENZYLPIPERIDIN-4-YLIDENE)ACETATE	C₁₆H₂₁NO₂	Molecular Weight:259.34300 Density:1.129g/cm3 Boiling Point:130ºC/0.75mm Melting Point:N/A	40110-55-2
4,8-dichloro-2,6-dimethylquinoline	C₁₁H₉Cl₂N	Molecular Weight:226.10200 Density:1.305g/cm3 Boiling Point:322.5ºC at 760 mmHg Melting Point:N/A	203626-46-4
5,8-DICHLORO-4-HYDROXYQUINOLINE	C₉H₅Cl₂NO	Molecular Weight:214.04800 Density:1.466g/cm3 Boiling Point:335.6ºC at 760 mmHg Melting Point:N/A	53790-82-2
4-Cyano-1-trichloromethylbenzene	C₈H₄Cl₃N	Molecular Weight:220.48300 Density:1.45g/cm3 Boiling Point:304.1ºC at 760mmHg Melting Point:N/A	2179-45-5
2-HYDROXY-4-METHYL-8-METHOXYQUINOLINE	C₁₁H₁₁NO₂	Molecular Weight:189.21100 Density:1.153g/cm3 Boiling Point:387.6ºC at 760mmHg Melting Point:N/A	30198-01-7
4-Amino-3-chlorobenzoic acid	C₇H₆ClNO₂	Molecular Weight:171.581 Density:1.5±0.1 g/cm3 Boiling Point:341.2±27.0 °C at 760 mmHg Melting Point:228 °C	2486-71-7
1-OCTYL-5-MERCAPTO-1H-TETRAZOLE	C₉H₁₈N₄S	Molecular Weight:214.33100 Density:1.17g/cm3 Boiling Point:329.3ºC at 760 mmHg Melting Point:N/A	70253-99-5
Ethyl N-(oxomethylene)glycinate	C₅H₇NO₃	Molecular Weight:129.114 Density:1.1±0.1 g/cm3 Boiling Point:181.8±0.0 °C at 760 mmHg Melting Point:N/A	2949-22-6
4-chloro-2-methyl-6-nitroquinoline	C₁₀H₇ClN₂O₂	Molecular Weight:222.62800 Density:N/A Boiling Point:N/A Melting Point:N/A	1207-81-4
[4-(Benzyloxy)-3-fluorophenyl]boronic acid	C₁₃H₁₂BFO₃	Molecular Weight:246.042 Density:1.3±0.1 g/cm3 Boiling Point:428.0±55.0 °C at 760 mmHg Melting Point:116 °C	133057-83-7
Methyl (2E)-3-[4-(trifluoromethyl)phenyl]acrylate	C₁₁H₉F₃O₂	Molecular Weight:230.183 Density:1.3±0.1 g/cm3 Boiling Point:256.8±35.0 °C at 760 mmHg Melting Point:N/A	20754-22-7
3-methoxyprop-1-in	C₄H₆O	Molecular Weight:70.090 Density:0.8±0.1 g/cm3 Boiling Point:63.0±0.0 °C at 760 mmHg Melting Point:N/A	627-41-8
4-[[(3-HYDROXY-2-NAPHTHYL)CARBONYL]AMINO]BENZOIC ACID	C₁₈H₁₃NO₄	Molecular Weight:307.30000 Density:1.44g/cm3 Boiling Point:487ºC at 760 mmHg Melting Point:N/A	61504-01-6
diethyl 2-[[4-(trifluoromethyl)anilino]methylidene]propanedioate	C₁₅H₁₆F₃NO₄	Molecular Weight:331.28700 Density:1.282g/cm3 Boiling Point:343.9ºC at 760 mmHg Melting Point:N/A	49713-39-5
8-Chloro-1-octanol	C₈H₁₇ClO	Molecular Weight:164.673 Density:1.0±0.1 g/cm3 Boiling Point:233.2±23.0 °C at 760 mmHg Melting Point:-3ºC	23144-52-7
8-(MORPHOLIN-4-YL)-5-NITROQUINOLINE	C₁₃H₁₃N₃O₃	Molecular Weight:259.26100 Density:1.35g/cm3 Boiling Point:485.4ºC at 760mmHg Melting Point:N/A	304884-33-1
2-Methyl-2-propanyl (4-aminophenyl)carbamate	C₁₁H₁₆N₂O₂	Molecular Weight:208.257 Density:1.2±0.1 g/cm3 Boiling Point:295.4±23.0 °C at 760 mmHg Melting Point:113-115 °C	71026-66-9
Urea,N-(1,1-dimethylpropyl)-	C₆H₁₄N₂O	Molecular Weight:130.18800 Density:0.948g/cm3 Boiling Point:185.7ºC at 760 mmHg Melting Point:N/A	625-15-0
4-hydroxy-6-methylquinoline	C₁₀H₉NO	Molecular Weight:159.18500 Density:N/A Boiling Point:N/A Melting Point:N/A	97545-52-3
2-(Trifluoromethoxy)benzonitrile	C₈H₄F₃NO	Molecular Weight:187.119 Density:1.3±0.1 g/cm3 Boiling Point:201.6±35.0 °C at 760 mmHg Melting Point:N/A	63968-85-4
7-Bromo-2-chloroquinoline	C₉H₅BrClN	Molecular Weight:242.500 Density:1.7±0.1 g/cm3 Boiling Point:325.7±22.0 °C at 760 mmHg Melting Point:N/A	99455-15-9
Methyl 4-(aminomethyl)benzoate	C₉H₁₂ClNO₂	Molecular Weight:201.650 Density:1.121g/cm3 Boiling Point:278.7ºC at 760mmHg Melting Point:243ºC (dec.)(lit.)	18469-52-8
4-Chloro-8-fluoro-2-methylquinoline	C₁₀H₇ClFN	Molecular Weight:195.621 Density:1.3±0.1 g/cm3 Boiling Point:269.9±35.0 °C at 760 mmHg Melting Point:N/A	18615-59-3
3,6-dimethylquinolin-2-amine	C₁₁H₁₂N₂	Molecular Weight:172.22600 Density:1.136g/cm3 Boiling Point:332.2ºC at 760 mmHg Melting Point:N/A	137110-39-5
4-chloro-6-ethyl-2-methylquinoline	C₁₂H₁₂ClN	Molecular Weight:205.68300 Density:1.156g/cm3 Boiling Point:300.1ºC at 760 mmHg Melting Point:N/A	123638-09-5
4-HYDROXY-5,7-DIMETHYL-QUINOLINE-3-CARBOXYLIC ACID ETHYL ESTER	C₁₄H₁₅NO₃	Molecular Weight:245.27400 Density:1.186g/cm3 Boiling Point:384.4ºC at 760 mmHg Melting Point:N/A	93514-84-2
Methyl cyanoformate	C₃H₃NO₂	Molecular Weight:85.061 Density:1.1±0.1 g/cm3 Boiling Point:100.5±0.0 °C at 760 mmHg Melting Point:°Cd ec.)	17640-15-2
5-Bromo-1-pentanol	C₅H₁₁BrO	Molecular Weight:167.044 Density:1.4±0.1 g/cm3 Boiling Point:203.5±23.0 °C at 760 mmHg Melting Point:N/A	34626-51-2
1H-Isoindole-1,3(2H)-dione,2-(2-propyn-1-yl)-	C₁₁H₇NO₂	Molecular Weight:185.17900 Density:1.318g/cm3 Boiling Point:304.1ºC at 760mmHg Melting Point:145-153ºC	7223-50-9
5-(Carbomethoxy)-2-pyrone	C₇H₆O₄	Molecular Weight:154.120 Density:1.3±0.1 g/cm3 Boiling Point:265.9±15.0 °C at 760 mmHg Melting Point:65-67 °C(lit.)	6018-41-3
7-Chloro-8-methyl-4-quinolinol	C₁₀H₈ClNO	Molecular Weight:193.630 Density:1.4±0.1 g/cm3 Boiling Point:360.6±37.0 °C at 760 mmHg Melting Point:N/A	203626-39-5
TERT-BUTYL 5-NITRO-3,4-DIHYDROISOQUINOLINE-2(1H)-CARBOXYLATE	C₁₄H₁₈N₂O₄	Molecular Weight:278.304 Density:1.2±0.0 g/cm3 Boiling Point:400.6±0.0 °C at 760 mmHg Melting Point:N/A	397864-14-1
2,6-di-tert-Butylanthracene	C₂₂H₂₆	Molecular Weight:290.44200 Density:0.998g/cm3 Boiling Point:420.417ºC at 760 mmHg Melting Point:N/A	62375-58-0
2-TERTBUTYL-9,10-DIBROMOANTHRACENE	C₁₈H₁₆Br₂	Molecular Weight:392.12800 Density:1.527g/cm3 Boiling Point:456.1ºC at 760mmHg Melting Point:N/A	114583-08-3
2-Bromo-5-nitrobenzonitrile	C₇H₃BrN₂O₂	Molecular Weight:227.015 Density:1.8±0.1 g/cm3 Boiling Point:321.1±32.0 °C at 760 mmHg Melting Point:118-120ºC	134604-07-2
Bromodiphenylmethane	C₁₃H₁₁Br	Molecular Weight:247.130 Density:1.3±0.1 g/cm3 Boiling Point:328.6±11.0 °C at 760 mmHg Melting Point:57-61ºC	14704-31-5
3-(7-bromoquinolin-4-yl)propan-1-amine	C₁₂H₁₃BrN₂	Molecular Weight:265.14900 Density:1.429g/cm3 Boiling Point:383.4ºC at 760 mmHg Melting Point:N/A	71595-18-1
1-Isothiocyanatobutane	C₅H₉NS	Molecular Weight:115.197 Density:0.9±0.1 g/cm3 Boiling Point:168.0±0.0 °C at 760 mmHg Melting Point:N/A	592-82-5
2-Methyl-4-(trifluoromethoxy)aniline	C₈H₈F₃NO	Molecular Weight:191.150 Density:1.3±0.1 g/cm3 Boiling Point:206.9±35.0 °C at 760 mmHg Melting Point:>300 °C(lit.)	86256-59-9
4-(Iodomethyl)tetrahydro-2H-pyran	C₆H₁₁IO	Molecular Weight:226.055 Density:1.6±0.1 g/cm3 Boiling Point:229.1±13.0 °C at 760 mmHg Melting Point:N/A	101691-94-5
Methyl 2-(4-bromophenyl)acetate	C₉H₉BrO₂	Molecular Weight:229.071 Density:1.4±0.1 g/cm3 Boiling Point:268.6±15.0 °C at 760 mmHg Melting Point:N/A	41841-16-1
1-Chloro-3,5-bis(trifluoromethyl)benzene	C₈H₃ClF₆	Molecular Weight:248.553 Density:1.5±0.1 g/cm3 Boiling Point:125.0±35.0 °C at 760 mmHg Melting Point:N/A	328-72-3
8-Fluoro-3-iodoquinoline	C₉H₅FIN	Molecular Weight:273.046 Density:1.9±0.1 g/cm3 Boiling Point:324.4±22.0 °C at 760 mmHg Melting Point:N/A	866782-59-4
4-Chloro-7-fluoro-2-methylquinoline	C₁₀H₇ClFN	Molecular Weight:195.621 Density:1.3±0.1 g/cm3 Boiling Point:269.9±35.0 °C at 760 mmHg Melting Point:N/A	18529-04-9
3-TRICHLOROMETHYLBENZONITRILE	C₈H₄Cl₃N	Molecular Weight:220.48300 Density:1.45g/cm3 Boiling Point:295.6ºC at 760 mmHg Melting Point:N/A	27020-96-8
2-METHYL-4,5,7-TRICHLOROQUINOLINE	C₁₀H₆Cl₃N	Molecular Weight:246.52000 Density:1.459g/cm3 Boiling Point:333.9ºC at 760 mmHg Melting Point:N/A	203626-80-6
4,7-Dihydro-1,3-dioxepin	C₅H₈O₂	Molecular Weight:100.11600 Density:1.049 g/mL at 25ºC(lit.) Boiling Point:125-127ºC(lit.) Melting Point:125-127ºC(lit.)	5417-32-3
2-Chloro-6-(trifluoromethyl)aniline	C₇H₅ClF₃N	Molecular Weight:195.570 Density:1.4±0.1 g/cm3 Boiling Point:194.0±35.0 °C at 760 mmHg Melting Point:N/A	433-94-3
Propanamide,N-(4-methoxyphenyl)-	C₁₀H₁₃NO₂	Molecular Weight:179.21600 Density:1.099g/cm3 Boiling Point:355.1ºC at 760mmHg Melting Point:N/A	2760-31-8