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
1-BENZYL-1,2,3,6-TETRAHYDROISONICOTINIC ACID ETHYL ESTER	C₁₅H₁₉NO₂	Molecular Weight:245.31700 Density:1.108 Boiling Point:344ºC Melting Point:N/A	23019-62-7
4-hydroxyphenyl methanesulfonate	C₇H₈O₄S	Molecular Weight:188.20100 Density:1.416g/cm3 Boiling Point:368.5ºC at 760 mmHg Melting Point:N/A	59722-33-7
3-Amino-4-cyclopropyl-1H-pyrazole	C₆H₉N₃	Molecular Weight:123.15600 Density:1.349 Boiling Point:320.668ºC at 760 mmHg Melting Point:N/A	673475-74-6
3-QUINOLINECARBOXYLIC ACID, 4-CHLORO-6-METHOXY-7-(PHENYLMETHOXY)-, ETHYL ESTER	C₂₀H₁₈ClNO₄	Molecular Weight:371.81400 Density:1.274 Boiling Point:N/A Melting Point:N/A	307353-90-8
2-Amino-1-pyrroline	C₄H₈N₂	Molecular Weight:84.11970 Density:N/A Boiling Point:N/A Melting Point:N/A	872-34-4
3-(dimethylcarbamoyl)-4-hydroxybenzoic acid	C₁₀H₁₁NO₄	Molecular Weight:209.19900 Density:N/A Boiling Point:N/A Melting Point:N/A	99060-72-7
E 2012	C₂₅H₂₆FN₃O₂	Molecular Weight:419.49100 Density:1.195g/cm3 Boiling Point:649.168ºC at 760 mmHg Melting Point:N/A	870843-42-8
4'-CHLORO-3'-(TRIFLUOROMETHYL)-[1,1'-BIPHENYL]-3-CARBOXYLIC ACID	C₁₄H₈ClF₃O₂	Molecular Weight:300.66000 Density:1.413g/cm3 Boiling Point:424.342ºC at 760 mmHg Melting Point:N/A	893637-97-3
1,3-Benzodioxol-5(6H)-one, 7,7a-dihydro-2,2,4,6,6-pentamethyl-	C₁₂H₁₈O₃	Molecular Weight:210.27000 Density:1.08 g/cm3 Boiling Point:292.8ºC at 760 mmHg Melting Point:N/A	83020-74-0
1-(3-Fluorobenzyl)-5-nitro-1H-indazole	C₁₄H₁₀FN₃O₂	Molecular Weight:271.246 Density:1.4±0.1 g/cm3 Boiling Point:447.7±30.0 °C at 760 mmHg Melting Point:N/A	529508-58-5
5-Bromo-1,2-dicarboxylic acid-1H-Pyrrole 1-(1,1-dimethylethyl) ester	C₁₀H₁₂BrNO₄	Molecular Weight:290.11100 Density:1.53 g/cm3 Boiling Point:395.145ºC at 760 mmHg Melting Point:N/A	117657-41-7
2-Aminocarbonyl-5-nitrobenzofuran	C₉H₆N₂O₄	Molecular Weight:206.15500 Density:N/A Boiling Point:N/A Melting Point:N/A	267644-49-5
3-(4-METHYL-1H-IMIDAZOL-1-YL)-5-(TRIFLUOROMETHYL)BENZOIC ACID	C₁₂H₉F₃N₂O₂	Molecular Weight:270.207 Density:1.4±0.1 g/cm3 Boiling Point:423.5±45.0 °C at 760 mmHg Melting Point:N/A	641571-13-3
3-Azabicyclo[3.1.0]hexane-1-carbonitrile, 3-(phenylmethyl)-	C₁₃H₁₄N₂	Molecular Weight:198.26400 Density:N/A Boiling Point:N/A Melting Point:N/A	56062-59-0
4-(3-Bromopropyl)morpholine	C₇H₁₄BrNO	Molecular Weight:208.096 Density:1.3±0.1 g/cm3 Boiling Point:242.6±25.0 °C at 760 mmHg Melting Point:N/A	125422-83-5
4-Hexyloxyphenyl 4-nitrobenzoate	C₁₉H₂₁NO₅	Molecular Weight:343.37400 Density:1.179g/cm3 Boiling Point:497.1ºC at 760 mmHg Melting Point:N/A	68162-10-7
5-Methyl-2-(methylsulfonyl)-7-phenylimidazo[5,1-f][1,2,4]triazine	C₁₃H₁₂N₄O₂S	Molecular Weight:288.32500 Density:N/A Boiling Point:N/A Melting Point:N/A	774462-48-5
(R)-2-chloro-8-cyclopentyl-7-ethyl-7,8-dihydropteridin-6(5H)-one	C₁₃H₁₇ClN₄O	Molecular Weight:280.75300 Density:N/A Boiling Point:N/A Melting Point:N/A	755039-54-4
Benzenemethanamine, 2,3,4,5,6-pentafluoro-a-methyl-, (aS)	C₈H₆F₅N	Molecular Weight:211.13200 Density:N/A Boiling Point:N/A Melting Point:N/A	916675-98-4
Benzenemethanamine, 2-chloro-6-fluoro-a-methyl-, (aS)-	C₈H₉ClFN	Molecular Weight:173.61500 Density:N/A Boiling Point:N/A Melting Point:N/A	1000922-53-1
(R)-1-(4-iodophenyl)ethan-1-amine	C₈H₁₀IN	Molecular Weight:247.07600 Density:1.661g/cm3 Boiling Point:264.821ºC at 760 mmHg Melting Point:N/A	150085-44-2
(S)-1-(2,4-dimethylphenyl)ethanamine	C₁₀H₁₅N	Molecular Weight:149.23300 Density:0.937g/cm3 Boiling Point:232.2ºC at 760 mmHg Melting Point:N/A	856563-12-7
Benzenepropanoic acid,-[(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)oxy]-,(aR)-	C₁₇H₁₃NO₅	Molecular Weight:311.28900 Density:N/A Boiling Point:N/A Melting Point:N/A	310404-47-8
Benzoicacid,4-[(1R)-1-aminoethyl]-,methylester	C₁₀H₁₃NO₂	Molecular Weight:179.216 Density:1.1±0.1 g/cm3 Boiling Point:281.5±15.0 °C at 760 mmHg Melting Point:N/A	912342-10-0
Butanoic acid, 2-(4-ethoxyphenoxy)-	C₁₂H₁₆O₄	Molecular Weight:224.25300 Density:N/A Boiling Point:N/A Melting Point:N/A	758660-80-9
Ethyl 5-chloro-1,3,4-thiadiazole-2-carboxylate	C₅H₅ClN₂O₂S	Molecular Weight:192.623 Density:1.5±0.1 g/cm3 Boiling Point:288.2±23.0 °C at 760 mmHg Melting Point:N/A	64837-49-6
Hydrazinecarbodithioic acid, [1-(2-pyridinyl)propylidene]-, methyl ester	C₁₀H₁₃N₃S₂	Molecular Weight:239.36000 Density:1.19g/cm3 Boiling Point:368.4ºC at 760 mmHg Melting Point:N/A	81742-04-3
Phenol, 5-(1-aminoethyl)-2-methoxy-, (R)-	C₉H₁₃NO₂	Molecular Weight:167.20500 Density:N/A Boiling Point:N/A Melting Point:N/A	134856-00-1
Propanoicacid,2-(4-ethoxyphenoxy)-2-methyl-	C₁₂H₁₆O₄	Molecular Weight:224.25300 Density:1.131g/cm3 Boiling Point:350.7ºC at 760 mmHg Melting Point:N/A	154548-95-5
4-N-naphthalen-1-yl-1-N,1-N-bis[4-(N-naphthalen-1-ylanilino)phenyl]-4-N-phenylbenzene-1,4-diamine	C₆₆H₄₈N₄	Molecular Weight:897.11400 Density:N/A Boiling Point:N/A Melting Point:N/A	497182-61-3
1,2,3,4-Tetrahydroisoquinoline-3-carboxamide	C₁₀H₁₂N₂O	Molecular Weight:176.21500 Density:1.169g/cm3 Boiling Point:413ºC at 760mmHg Melting Point:N/A	112794-29-3
1,3-Benzodithiol-1-ium tetrafluoroborate	C₇H₅BF₄S₂	Molecular Weight:240.049 Density:N/A Boiling Point:N/A Melting Point:150 °C (dec.)(lit.)	57842-27-0
3,6,9-Trioxaundecanedioic acid	C₈H₁₄O₇	Molecular Weight:222.193 Density:1.3±0.1 g/cm3 Boiling Point:443.7±30.0 °C at 760 mmHg Melting Point:N/A	13887-98-4
Fmoc-N-methyl-O-benzyl-L-serine	C₂₆H₂₅NO₅	Molecular Weight:431.480 Density:1.3±0.1 g/cm3 Boiling Point:618.9±55.0 °C at 760 mmHg Melting Point:N/A	84000-14-6
1-Ethyl-3-(2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea	C₁₆H₂₅BN₂O₄	Molecular Weight:320.192 Density:1.1±0.1 g/cm3 Boiling Point:429.0±45.0 °C at 760 mmHg Melting Point:N/A	917111-46-7
S-(Trifluoromethyl)dibenzothiophenium tetrafluoroborate	C₁₃H₈BF₇S	Molecular Weight:340.067 Density:N/A Boiling Point:N/A Melting Point:171-172°C	131880-16-5
3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	C₁₃H₁₆BNO₂	Molecular Weight:229.083 Density:1.1±0.1 g/cm3 Boiling Point:341.0±25.0 °C at 760 mmHg Melting Point:78-82 °C(lit.)	214360-46-0
3-(3-Pyridinyl)-1-propanol	C₈H₁₁NO	Molecular Weight:137.179 Density:1.1±0.1 g/cm3 Boiling Point:284.0±0.0 °C at 760 mmHg Melting Point:N/A	2859-67-8
4-(Trimethysilyl)-ethynylbenzaldehyde	C₁₂H₁₄OSi	Molecular Weight:202.32400 Density:0.98g/cm3 Boiling Point:262.1ºC at 760 mmHg Melting Point:66-70ºC	77123-57-0
4-(N,N-Dimethylaminocarbonyl)phenylboronic acid, pinacol ester	C₁₅H₂₂BNO₃	Molecular Weight:275.151 Density:1.1±0.1 g/cm3 Boiling Point:406.2±28.0 °C at 760 mmHg Melting Point:N/A	400727-57-3
4,5-diamino-6-hydroxypyrimidine hemisulfate	C₈H₁₄N₈O₆S	Molecular Weight:350.31200 Density:N/A Boiling Point:603.4ºC at 760 mmHg Melting Point:270ºC (dec.)(lit.)	102783-18-6
N-(4-methyl-1,3-thiazol-2-yl)acetamide	C₆H₈N₂OS	Molecular Weight:156.20600 Density:1.285g/cm3 Boiling Point:N/A Melting Point:134-136ºC(lit.)	7336-51-8
5-chloro-4-iodo-N-isopropylpyridin-2-amine	C₈H₁₀ClIN₂	Molecular Weight:296.53600 Density:N/A Boiling Point:N/A Melting Point:N/A	869886-87-3
5-Bromo-2-cyclopropyl-1-isoindolinone	C₁₁H₁₀BrNO	Molecular Weight:252.10700 Density:N/A Boiling Point:N/A Melting Point:N/A	864866-56-8
5-bromo-2-(1,3-dioxolan-2-yl)pyridine	C₈H₈BrNO₂	Molecular Weight:230.05900 Density:N/A Boiling Point:N/A Melting Point:N/A	884495-16-3
Ethyl 5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine-1-carboxylate	C₉H₁₃N₃O₂	Molecular Weight:195.218 Density:1.4±0.1 g/cm3 Boiling Point:422.2±45.0 °C at 760 mmHg Melting Point:N/A	951627-01-3
(4-Phenyl-1-piperidinyl)acetic acid	C₁₃H₁₇NO₂	Molecular Weight:219.28000 Density:N/A Boiling Point:N/A Melting Point:N/A	394202-90-5
4-Amino-N-methoxy-N-methyl-benzamide	C₉H₁₂N₂O₂	Molecular Weight:180.20400 Density:N/A Boiling Point:N/A Melting Point:N/A	186252-52-8
4,5-DIFLUORO-O-PHENYLENEDIAMINE DIHYDROCHLORIDE	C₆H₈Cl₂F₂N₂	Molecular Weight:217.04400 Density:N/A Boiling Point:338.2ºC at 760 mmHg Melting Point:N/A	123470-46-2
3-PYRIDAZINECARBOXYLIC ACID, 6-AMINO-, HYDROCHLORIDE	C₅H₆ClN₃O₂	Molecular Weight:175.57300 Density:N/A Boiling Point:N/A Melting Point:N/A	120854-58-2