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
2,2'-Furoin	C₁₀H₈O₄	Molecular Weight:192.16800 Density:1.32 g/cm3 Boiling Point:306.8ºC at 760 mmHg Melting Point:134-137 °C(lit.)	552-86-3
4-Bromobenzene-1,2-diamine	C₆H₇BrN₂	Molecular Weight:187.037 Density:1.7±0.1 g/cm3 Boiling Point:289.3±20.0 °C at 760 mmHg Melting Point:65-69 °C (dec.)(lit.)	1575-37-7
2-AMINODIPYRIDO[1,2-A:3',2-D]IMIDAZOLE, HYDROCHLORIDE	C₁₀H₉ClN₄	Molecular Weight:220.65800 Density:1.47 g/cm3 Boiling Point:349.7ºC at 760 mmHg Melting Point:300ºC	67730-10-3
4-(5-methyl-1,2,4-oxadiazol-3-yl)aniline	C₉H₉N₃O	Molecular Weight:175.18700 Density:1.229g/cm3 Boiling Point:357.8ºC at 760mmHg Melting Point:113ºC	10185-68-9
sulfuryl fluoride	F₂O₂S	Molecular Weight:102.06100 Density:1.687g/cm3 Boiling Point:-55,2°C Melting Point:-121,4°C	2699-79-8
3-methyl-5-phenyl-1,2-oxazole-4-carbonyl chloride	C₁₁H₈ClNO₂	Molecular Weight:221.64000 Density:1.278g/cm3 Boiling Point:369.1ºC at 760 mmHg Melting Point:N/A	91182-77-3
2-DIETHOXYMETHYL-1,1-DIETHOXYBUTANE	C₁₃H₂₈O₄	Molecular Weight:248.35900 Density:N/A Boiling Point:N/A Melting Point:N/A	30989-69-6
(5-(Dimethylcarbamoyl)-2-fluorophenyl)boronic acid	C₉H₁₁BFNO₃	Molecular Weight:210.99800 Density:1.28g/cm3 Boiling Point:433.2ºC at 760 mmHg Melting Point:143-147ºC	874289-46-0
2-Propoxyphenylboronic acid(Contains varying amounts of anhydride)	C₉H₁₃BO₃	Molecular Weight:180.00900 Density:1.1g/cm3 Boiling Point:339.9ºC at 760mmHg Melting Point:65-69ºC(lit.)	134896-34-7
2-Fluoro-6-methoxybenzoyl chlorid	C₈H₆ClFO₂	Molecular Weight:188.58300 Density:1.309g/cm3 Boiling Point:234.9ºC at 760 mmHg Melting Point:N/A	500912-12-9
1,3-DIMETHYL-1H-THIENO[2,3-C]PYRAZOLE-5-CARBONYL CHLORIDE	C₈H₇ClN₂OS	Molecular Weight:214.67200 Density:1.54g/cm3 Boiling Point:336.9ºC at 760 mmHg Melting Point:165ºC	388088-75-3
2-(2,4-DICHLOROPHENOXY)ANILINE HYDROCHLORIDE	C₁₂H₁₀Cl₃NO	Molecular Weight:290.57300 Density:N/A Boiling Point:332.8ºC at 760 mmHg Melting Point:88-91ºC	89279-16-3
3-Biphenylamine	C₁₂H₁₁N	Molecular Weight:169.222 Density:1.1±0.1 g/cm3 Boiling Point:341.7±21.0 °C at 760 mmHg Melting Point:28-33ºC	2243-47-2
5-FLUORO-2-HYDROXYBENZOIC ACID ETHYL ESTER	C₉H₉FO₃	Molecular Weight:184.16400 Density:1.257g/cm3 Boiling Point:255.8ºC at 760 mmHg Melting Point:N/A	443-12-9
4-Bromo-3-fluoroanisole	C₇H₆BrFO	Molecular Weight:205.02400 Density:N/A Boiling Point:N/A Melting Point:N/A	408-50-4
5,6-dichlorobenzimidazole	C₇H₄Cl₂N₂	Molecular Weight:187.02600 Density:N/A Boiling Point:N/A Melting Point:N/A	20076-54-4
3-(Difluoromethoxy)benzoic acid	C₈H₆F₂O₃	Molecular Weight:188.128 Density:1.4±0.1 g/cm3 Boiling Point:287.3±30.0 °C at 760 mmHg Melting Point:105°C	4837-19-8
3-bromothiophene-2-carboxamide	C₅H₄BrNOS	Molecular Weight:206.06000 Density:1.81 g/cm3 Boiling Point:318ºC at 760 mmHg Melting Point:77-78ºC	78031-18-2
N1-(3-CYANO-4-METHYL-2-THIENYL)-2-CHLOROACETAMIDE	C₈H₇ClN₂OS	Molecular Weight:214.67200 Density:N/A Boiling Point:N/A Melting Point:198ºC	648859-02-3
Diethyl 2,5-dioxobicyclo[2.2.2]octane-1,4-dicarboxylate	C₁₄H₁₈O₆	Molecular Weight:282.289 Density:1.3±0.1 g/cm3 Boiling Point:393.0±42.0 °C at 760 mmHg Melting Point:108ºC	843-59-4
3-(4-ethylbenzoyl)propionic acid	C₁₂H₁₄O₃	Molecular Weight:206.23800 Density:1.136g/cm3 Boiling Point:398.6ºC at 760mmHg Melting Point:92-94°C	49594-75-4
(3-amino-5-nitrophenyl)boronic acid	C₆H₇BN₂O₄	Molecular Weight:181.94200 Density:1.48g/cm3 Boiling Point:484.1ºC at 760 mmHg Melting Point:N/A	89466-05-7
Benzoic acid,2,3,4,5-tetrafluoro-, methyl ester	C₈H₄F₄O₂	Molecular Weight:208.11000 Density:1.443g/cm3 Boiling Point:220.3ºC at 760 mmHg Melting Point:N/A	5292-42-2
ethyl 3,5-dichloro-4-hydroxybenzoate	C₉H₈Cl₂O₃	Molecular Weight:235.06400 Density:1.414 g/cm3 Boiling Point:316.6ºC at 760 mmHg Melting Point:98-102 °C	17302-82-8
1,3-Dichloro-2,4-difluoro-5-nitrobenzene	C₆HCl₂F₂NO₂	Molecular Weight:227.980 Density:1.7±0.1 g/cm3 Boiling Point:268.0±35.0 °C at 760 mmHg Melting Point:N/A	15952-70-2
2,5-Dibromo-3-methylpyridine	C₆H₅Br₂N	Molecular Weight:250.919 Density:1.9±0.1 g/cm3 Boiling Point:260.0±35.0 °C at 760 mmHg Melting Point:43-47 °C(lit.)	3430-18-0
3-Methoxycinnamic acid	C₁₀H₁₀O₃	Molecular Weight:178.185 Density:1.2±0.1 g/cm3 Boiling Point:329.9±17.0 °C at 760 mmHg Melting Point:116-119ºC(lit.)	17570-26-2
4-Amino-3,5-dibromo-2-methylpyridine	C₆H₆Br₂N₂	Molecular Weight:265.93300 Density:1.99g/cm3 Boiling Point:296.2ºC at 760 mmHg Melting Point:N/A	126325-54-0
L-CYSTEINE-GLUTATHIONE DISULFIDE	C₁₃H₂₂N₄O₈S₂	Molecular Weight:426.46600 Density:N/A Boiling Point:N/A Melting Point:234(dec.)ºC	13081-14-6
2,2,3,3-Tetrafluoropropyl methacrylate	C₇H₈F₄O₂	Molecular Weight:200.131 Density:1.2±0.1 g/cm3 Boiling Point:157.8±35.0 °C at 760 mmHg Melting Point:<0ºC	45102-52-1
6-METHOXY-7,8,9,10-TETRAHYDRO-6H-[1,2,5]OXADIAZOLO[3,4-C]CARBAZOLE	C₁₃H₁₃N₃O₂	Molecular Weight:243.26100 Density:1.51g/cm3 Boiling Point:415.5ºC at 760mmHg Melting Point:118-120ºC	255865-29-3
Methyl 2-(Trifluoromethyl)-3,3,3-trifluoropropionate	C₅H₄F₆O₂	Molecular Weight:210.07400 Density:1.604 Boiling Point:90-91ºC Melting Point:N/A	360-54-3
Diisopropyl (bromomethyl)boronate	C₇H₁₆BBrO₂	Molecular Weight:222.916 Density:1.2±0.1 g/cm3 Boiling Point:138.7±23.0 °C at 760 mmHg Melting Point:N/A	137297-49-5
5-METHYL-2-(TRIFLUOROMETHYL)-3-FURYL ISOCYANATE	C₇H₄F₃NO₂	Molecular Weight:191.10700 Density:1.38g/cm3 Boiling Point:200ºC at 760mmHg Melting Point:N/A	306935-03-5
4-Amino-7-trifluoromethylquinoline	C₁₀H₇F₃N₂	Molecular Weight:212.171 Density:1.4±0.1 g/cm3 Boiling Point:329.7±37.0 °C at 760 mmHg Melting Point:104 °C	243666-11-7
3-trifluoromethylacetophenone oxime	C₉H₈F₃NO	Molecular Weight:203.161 Density:1.2±0.1 g/cm3 Boiling Point:255.4±40.0 °C at 760 mmHg Melting Point:83-86ºC	99705-50-7
2,4-Diamino-6-hydroxypyrimidine	C₄H₆N₄O	Molecular Weight:126.12 Density:1.6±0.1 g/cm3 Boiling Point:524.0±53.0 °C at 760 mmHg Melting Point:285-286 °C (dec.)(lit.)	56-06-4
7-FLUOROBENZO-2-OXA-1,3-DIAZOLE-4-SULFONIC ACID AMMONIUM SALT	C₆H₆FN₃O₄S	Molecular Weight:235.19300 Density:1.762 g/cm3 Boiling Point:400.9ºC Melting Point:>290°C dec.	84806-27-9
4-Amino-2,2,6,6-tetramethylpiperidine	C₉H₂₀N₂	Molecular Weight:156.268 Density:0.8±0.1 g/cm3 Boiling Point:188.5±8.0 °C at 760 mmHg Melting Point:16-18 °C(lit.)	36768-62-4
sodium,2-hydroxy-5-methoxybenzoate	C₈H₇NaO₄	Molecular Weight:190.12900 Density:1.351g/cm3 Boiling Point:347ºC at 760mmHg Melting Point:N/A	25832-71-7
4-HYDROXY-3-METHOXYPHENYLACETIC ACID ETHYL ESTER	C₁₁H₁₄O₄	Molecular Weight:210.22600 Density:1.16g/cm3 Boiling Point:180-185ºC14 mm Hg(lit.) Melting Point:44-47ºC(lit.)	60563-13-5
3-Hydroxy-1H-phenalen-1-one	C₁₃H₈O₂	Molecular Weight:196.201 Density:1.4±0.1 g/cm3 Boiling Point:407.3±45.0 °C at 760 mmHg Melting Point:264ºC(lit.)	5472-84-4
1-Benzyl-1H-indazole-3-carboxylic acid	C₁₅H₁₂N₂O₂	Molecular Weight:252.268 Density:1.3±0.1 g/cm3 Boiling Point:491.5±28.0 °C at 760 mmHg Melting Point:N/A	41354-03-4
4-Hydroxy-3-(2-methyl-2-propanyl)benzoic acid	C₁₁H₁₄O₃	Molecular Weight:194.227 Density:1.2±0.1 g/cm3 Boiling Point:331.4±35.0 °C at 760 mmHg Melting Point:157-159ºC	66737-88-0
2-NAPHTHALDEHYDE OXIME	C₁₁H₉NO	Molecular Weight:171.19500 Density:1.108g/cm3 Boiling Point:322.023ºC at 760 mmHg Melting Point:N/A	24091-02-9
5-HYDROXY-2-NITROBENZYL ALCOHOL	C₇H₇NO₄	Molecular Weight:169.13500 Density:1.489g/cm3 Boiling Point:398.6ºC at 760 mmHg Melting Point:111-115ºC(lit.)	60463-12-9
2-hydroxy-3,4-dimethoxy-6-methylbenzaldehyde	C₁₀H₁₂O₄	Molecular Weight:196.20000 Density:1.197g/cm3 Boiling Point:314.1ºC at 760mmHg Melting Point:N/A	22383-86-4
2-chloro-6-phenoxybenzonitrile	C₁₃H₈ClNO	Molecular Weight:229.66200 Density:1.29g/cm3 Boiling Point:351ºC at 760mmHg Melting Point:61-63ºC	91692-70-5
TRANS-4-BOC-AMINO-1-BENZYLPYRROLIDINE-3-CARBOXYLIC ACID	C₁₇H₂₄N₂O₄	Molecular Weight:320.38300 Density:1.2g/cm3 Boiling Point:478.9ºC at 760 mmHg Melting Point:198.1-198.6ºC	628725-28-0
Methyl 4-benzyl-5-oxo-morpholine-3-carboxylate	C₁₃H₁₅NO₄	Molecular Weight:249.26200 Density:1.24g/cm3 Boiling Point:423ºC at 760mmHg Melting Point:N/A	106910-81-0