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
DI-TERT-BUTYL 1H-INDOLE-1,5-DICARBOXYLATE	C₁₈H₂₃NO₄	Molecular Weight:317.38000 Density:N/A Boiling Point:N/A Melting Point:N/A	866587-85-1
4-Bromo-1H-pyrazolo[3,4-c]pyridin-3-amine	C₆H₅BrN₄	Molecular Weight:213.03500 Density:N/A Boiling Point:N/A Melting Point:N/A	870244-35-2
TERT-BUTYL 5-ACETYL-1H-INDAZOLE-1-CARBOXYLATE	C₁₄H₁₆N₂O₃	Molecular Weight:260.28800 Density:N/A Boiling Point:N/A Melting Point:N/A	877264-73-8
1-(5,6-Dimethyl-1H-benzimidazol-2-yl)ethanone	C₁₁H₁₂N₂O	Molecular Weight:188.22600 Density:N/A Boiling Point:N/A Melting Point:N/A	881672-80-6
TERT-BUTYL 3-(HYDROXYMETHYL)-1H-INDAZOLE-1-CARBOXYLATE	C₁₃H₁₆N₂O₃	Molecular Weight:248.27800 Density:N/A Boiling Point:N/A Melting Point:N/A	882188-87-6
SPIRO[PIPERIDINE-4,3'-PYRROLO[2,3-B]PYRIDIN]-2'(1'H)-ONE	C₁₁H₁₃N₃O	Molecular Weight:203.24000 Density:N/A Boiling Point:N/A Melting Point:N/A	884049-52-9
4-Iodo-1H-indazole-3-carboxylic acid	C₈H₅IN₂O₂	Molecular Weight:288.042 Density:2.2±0.1 g/cm3 Boiling Point:512.1±30.0 °C at 760 mmHg Melting Point:N/A	885518-74-1
4-Formyl-1H-indazole-3-carboxylic acid	C₉H₆N₂O₃	Molecular Weight:190.156 Density:1.6±0.1 g/cm3 Boiling Point:521.9±30.0 °C at 760 mmHg Melting Point:N/A	885519-90-4
4-Bromo-1H-indazole-3-carbaldehyde	C₈H₅BrN₂O	Molecular Weight:225.042 Density:1.8±0.1 g/cm3 Boiling Point:414.1±25.0 °C at 760 mmHg Melting Point:N/A	885521-76-6
3-AMINO-1H-INDAZOL-4-OL	C₇H₇N₃O	Molecular Weight:149.15000 Density:N/A Boiling Point:N/A Melting Point:N/A	88805-68-9
1-(1H-Pyrazolo[3,4-b]pyridin-3-yl)ethanone	C₈H₇N₃O	Molecular Weight:161.161 Density:1.3±0.1 g/cm3 Boiling Point:368.5±22.0 °C at 760 mmHg Melting Point:N/A	889451-31-4
4-Methoxy-1H-indazole-3-carbaldehyde	C₉H₈N₂O₂	Molecular Weight:176.172 Density:1.3±0.1 g/cm3 Boiling Point:391.7±22.0 °C at 760 mmHg Melting Point:N/A	898747-12-1
3-IODO-1H-INDAZOLE-6-CARBOXAMIDE	C₈H₆IN₃O	Molecular Weight:287.05700 Density:N/A Boiling Point:N/A Melting Point:N/A	906000-45-1
2-BROMO-6-NITRO-1H-BENZO[D]IMIDAZOLE	C₇H₄BrN₃O₂	Molecular Weight:242.03000 Density:1.965±0.06 g/cm3(Predicted) Boiling Point:450.8±37.0 °C(Predicted) Melting Point:N/A	909776-51-8
(1H-IMIDAZO[4,5-B]PYRIDIN-7-YL)METHANOL	C₇H₇N₃O	Molecular Weight:149.15000 Density:N/A Boiling Point:N/A Melting Point:N/A	912451-71-9
TERT-BUTYL 5-(4-METHYLPIPERAZIN-1-YL)-1H-INDOLE-1-CARBOXYLATE	C₁₈H₂₅N₃O₂	Molecular Weight:315.41000 Density:N/A Boiling Point:N/A Melting Point:N/A	913388-48-4
2-(PIPERAZIN-1-YL)ISONICOTINIC ACID	C₁₀H₁₃N₃O₂	Molecular Weight:207.22900 Density:N/A Boiling Point:N/A Melting Point:N/A	914637-26-6
5-PHENYLBENZO[D]THIAZOLE	C₁₃H₉NS	Molecular Weight:211.28200 Density:N/A Boiling Point:N/A Melting Point:N/A	91804-56-7
INDOLIN-4-YLMETHANAMINE	C₉H₁₂N₂	Molecular Weight:148.20500 Density:N/A Boiling Point:N/A Melting Point:N/A	918864-94-5
(1H-PYRAZOLO[3,4-B]PYRIDIN-4-YL)METHANAMINE	C₇H₈N₄	Molecular Weight:148.16500 Density:N/A Boiling Point:N/A Melting Point:N/A	935466-91-4
7-(METHYLTHIO)-1H-INDOLE	C₉H₉NS	Molecular Weight:163.23900 Density:N/A Boiling Point:N/A Melting Point:N/A	936902-07-7
4-(Chloromethyl)-1H-indazole	C₈H₇ClN₂	Molecular Weight:166.60800 Density:N/A Boiling Point:N/A Melting Point:N/A	944898-78-6
3-IODO-4-METHOXY-1H-INDAZOLE	C₈H₇IN₂O	Molecular Weight:274.05800 Density:N/A Boiling Point:N/A Melting Point:N/A	944898-81-1
TERT-BUTYL 3-(BROMOMETHYL)-5-CHLORO-1H-INDAZOLE-1-CARBOXYLATE	C₁₃H₁₄BrClN₂O₂	Molecular Weight:345.61900 Density:N/A Boiling Point:N/A Melting Point:N/A	944899-43-8
TERT-BUTYL 4-IODO-1H-PYRAZOLO[3,4-B]PYRIDINE-1-CARBOXYLATE	C₁₁H₁₂IN₃O₂	Molecular Weight:345.13600 Density:N/A Boiling Point:N/A Melting Point:N/A	945599-35-9
3-Imidazo[1,2-a]pyridin-6-yl-3-oxopropanenitrile	C₁₀H₇N₃O	Molecular Weight:185.182 Density:1.3±0.1 g/cm3 Boiling Point:N/A Melting Point:N/A	948883-29-2
1H-Pyrazolo[3,4-b]pyridine-5-carbaldehyde	C₇H₅N₃O	Molecular Weight:147.13400 Density:N/A Boiling Point:N/A Melting Point:N/A	955127-76-1
BENZO[D]OXAZOLE-4-CARBOXAMIDE	C₈H₆N₂O₂	Molecular Weight:162.14500 Density:N/A Boiling Point:N/A Melting Point:N/A	957995-85-6
5-(1-METHYLETHYL)-1H-INDOLE	C₁₁H₁₃N	Molecular Weight:159.22800 Density:1.047±0.06 g/cm3(Predicted) Boiling Point:281.3±9.0 °C(Predicted) Melting Point:N/A	97820-51-4
1H-Indazole-5-sulfonic acid	C₇H₆N₂O₃S	Molecular Weight:198.19900 Density:N/A Boiling Point:N/A Melting Point:N/A	98550-01-7
3-Phenyloxetane	C₉H₁₀O	Molecular Weight:134.17500 Density:1.063g/cm3 Boiling Point:215.226ºC at 760 mmHg Melting Point:55-56 °C	10317-13-2
2,6-Dibromopyridine 1-oxide	C₅H₃Br₂NO	Molecular Weight:252.891 Density:2.2±0.1 g/cm3 Boiling Point:387.1±22.0 °C at 760 mmHg Melting Point:N/A	25373-69-7
3-Methoxy-4-methyl-1,5-naphthyridine	C₁₀H₁₀N₂O	Molecular Weight:174.19900 Density:N/A Boiling Point:N/A Melting Point:N/A	893566-31-9
2-Fluorobenzene-1,4-diol	C₆H₅FO₂	Molecular Weight:128.101 Density:1.4±0.1 g/cm3 Boiling Point:259.3±20.0 °C at 760 mmHg Melting Point:N/A	55660-73-6
2-(1-Methyl-1-phenylethyl)-5-phenyl-2H-tetrazole	C₁₆H₁₆N₄	Molecular Weight:264.32500 Density:1.13g/cm3 Boiling Point:434.8ºC at 760 mmHg Melting Point:N/A	165670-57-5
Methyl cycloheptanecarboxylate	C₉H₁₆O₂	Molecular Weight:156.22200 Density:N/A Boiling Point:N/A Melting Point:N/A	60433-00-3
ETHYL 2-(2-(((BENZYLOXY)CARBONYL)AMINO)THIAZOL-4-YL)ACETATE	C₁₅H₁₆N₂O₄S	Molecular Weight:320.36400 Density:N/A Boiling Point:N/A Melting Point:N/A	92592-02-4
2-(4-(4-CHLOROBUTANOYL)PHENYL)-2-METHYLPROPANOIC ACID	C₁₄H₁₇ClO₃	Molecular Weight:268.73600 Density:N/A Boiling Point:N/A Melting Point:N/A	169280-21-1
3,5-Dichloro-2-methoxypyridine	C₆H₅Cl₂NO	Molecular Weight:178.016 Density:1.4±0.1 g/cm3 Boiling Point:199.7±35.0 °C at 760 mmHg Melting Point:90ºC	13472-58-7
3-(4-Chlorophenyl)-3-(2-phenylacetamido)propanoic acid	C₁₇H₁₆ClNO₃	Molecular Weight:317.767 Density:1.3±0.1 g/cm3 Boiling Point:571.9±50.0 °C at 760 mmHg Melting Point:N/A	171002-19-0
4-Bromo-2-methoxy-6-methylpyridine	C₇H₈BrNO	Molecular Weight:202.04900 Density:N/A Boiling Point:N/A Melting Point:N/A	1083169-00-9
2,4-Dibromo-6-methylpyridine	C₆H₅Br₂N	Molecular Weight:250.91900 Density:1.911g/cm3 Boiling Point:259.331ºC at 760 mmHg Melting Point:N/A	79055-52-0
4-Methyl-1,2,3,4-Tetrahydro-Isoquinoline	C₁₀H₁₃N	Molecular Weight:147.21700 Density:N/A Boiling Point:N/A Melting Point:N/A	110841-71-9
METHYL 2-(TETRAHYDROFURAN-2-YL)ACETATE	C₇H₁₂O₃	Molecular Weight:144.16800 Density:N/A Boiling Point:N/A Melting Point:N/A	2018-85-1
tert-Butyl 2,6-dimethyl-4-oxopiperidine-1-carboxylate	C₁₂H₂₁NO₃	Molecular Weight:227.300 Density:1.0±0.1 g/cm3 Boiling Point:308.2±35.0 °C at 760 mmHg Melting Point:N/A	604010-24-4
2,3-Dichloro-5,6-dimethylpyrazine	C₆H₆Cl₂N₂	Molecular Weight:177.03100 Density:N/A Boiling Point:N/A Melting Point:N/A	32493-79-1
(4-METHOXYPYRIMIDIN-2-YL)METHANAMINE HYDROCHLORIDE	C₆H₁₀ClN₃O	Molecular Weight:175.61600 Density:N/A Boiling Point:N/A Melting Point:N/A	1196154-28-5
2-(aminomethyl)-N,N-dimethylpyrimidin-5-amine	C₇H₁₂N₄	Molecular Weight:152.19700 Density:N/A Boiling Point:N/A Melting Point:N/A	944902-83-4
1-Phenyl-2,5-dihydro-1H-pyrrole	C₁₀H₁₁N	Molecular Weight:145.201 Density:1.1±0.1 g/cm3 Boiling Point:237.9±29.0 °C at 760 mmHg Melting Point:N/A	103204-12-2
4-(4-nitrophenyl)butan-2-one	C₁₀H₁₁NO₃	Molecular Weight:193.19900 Density:N/A Boiling Point:N/A Melting Point:N/A	30780-19-9