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
4-(4'-(TRIFLUOROMETHOXY)PHENOXYMETHYL)P&	C₁₄H₁₂BF₃O₄	Molecular Weight:312.04900 Density:1.37g/cm3 Boiling Point:415.5ºC at 760 mmHg Melting Point:N/A	870778-97-5
Dimethyl 2-(5-methyl-2,4-dinitrophenyl)malonate	C₁₂H₁₂N₂O₈	Molecular Weight:312.23200 Density:N/A Boiling Point:N/A Melting Point:N/A	941294-15-1
1-chloro-4-methylsulfanyl-2-(trifluoromethyl)benzene	C₈H₆ClF₃S	Molecular Weight:226.64600 Density:N/A Boiling Point:N/A Melting Point:N/A	957066-04-5
4-Bromo-2,6-dichloro-3-methylaniline	C₇H₆BrCl₂N	Molecular Weight:254.93900 Density:1.721g/cm3 Boiling Point:275.9ºC at 760 mmHg Melting Point:N/A	62406-68-2
2-Chloro-4-isopropylpyrimidine	C₇H₉ClN₂	Molecular Weight:156.61300 Density:1.135g/cm3 Boiling Point:247.7ºC at 760 mmHg Melting Point:N/A	941294-36-6
(4-(Ethoxymethoxy)phenyl)boronic acid	C₉H₁₃BO₄	Molecular Weight:196.00800 Density:N/A Boiling Point:N/A Melting Point:N/A	957062-54-3
2,3-Dihydro-5,7-dinitrobenzofuran	C₈H₆N₂O₅	Molecular Weight:210.14400 Density:1.577g/cm3 Boiling Point:355ºC at 760 mmHg Melting Point:N/A	84944-77-4
Ethyl imidazo[1,2-a]pyridine-7-carboxylate hydrochloride	C₁₀H₁₁ClN₂O₂	Molecular Weight:226.66000 Density:N/A Boiling Point:N/A Melting Point:N/A	957120-75-1
[2-(diethylsulfamoyl)phenyl]boronic acid	C₁₀H₁₆BNO₄S	Molecular Weight:257.11400 Density:1.293g/cm3 Boiling Point:444.278ºC at 760 mmHg Melting Point:N/A	957061-16-4
2-(3-Bromophenyl)-5-propyl-1,3,4-oxadiazole	C₁₁H₁₁BrN₂O	Molecular Weight:267.12200 Density:1.409g/cm3 Boiling Point:363.4ºC at 760mmHg Melting Point:N/A	957065-95-1
3-Bromo-N-cyclopropyl-5-(trifluoromethyl)benzenesulfonamide	C₁₀H₉BrF₃NO₂S	Molecular Weight:344.14800 Density:N/A Boiling Point:N/A Melting Point:N/A	951884-61-0
(3-FORMYL-2-ISOPROPOXY-5-METHYLPHENYL)BORONIC ACID	C₁₁H₁₅BO₄	Molecular Weight:222.04500 Density:N/A Boiling Point:N/A Melting Point:113-117ºC	480424-52-0
(2R,3S)-O,O-DIACETYL-3-DIBENZYLAMINO-5-METHYLHEXANE-1,2-DIOL	C₂₅H₃₃NO₄	Molecular Weight:411.53400 Density:1.083g/cm3 Boiling Point:508.294ºC at 760 mmHg Melting Point:N/A	871948-88-8
tert-butyl4-chloropyridin-2-ylcarbamate	C₁₀H₁₃ClN₂O₂	Molecular Weight:228.675 Density:1.2±0.1 g/cm3 Boiling Point:274.3±25.0 °C at 760 mmHg Melting Point:(dec)	130721-78-7
1-OXO-1,2-DIHYDRO-4-ISOQUINOLINECARBOXYLIC ACID	C₁₀H₇NO₃	Molecular Weight:189.16700 Density:1.429g/cm3 Boiling Point:430.6ºC at 760mmHg Melting Point:310ºC	34014-51-2
7-METHOXY-D-TRYPTOPHAN	C₁₂H₁₄N₂O₃	Molecular Weight:234.25100 Density:N/A Boiling Point:N/A Melting Point:N/A	808145-87-1
3-AMINO-3-(4-DIETHYLAMINO-PHENYL)-PROPIONIC ACID	C₁₃H₂₀N₂O₂	Molecular Weight:236.31000 Density:N/A Boiling Point:N/A Melting Point:N/A	213192-59-7
(S)-3-(3-CHLOROPHENYL)-BETA-ALANINE	C₁₃H₁₅NO₃	Molecular Weight:233.26300 Density:1.162g/cm3 Boiling Point:373.5ºC at 760 mmHg Melting Point:N/A	572923-18-3
2-AMINO-2-(QUINOLIN-6-YL)ACETIC ACID	C₁₁H₁₀N₂O₂	Molecular Weight:202.20900 Density:1.36g/cm3 Boiling Point:413.2ºC at 760mmHg Melting Point:N/A	108763-20-8
4-((4-METHOXYBENZYL)OXY)-2-METHYLENE-4-OXOBUTANOIC ACID	C₁₃H₁₄O₅	Molecular Weight:250.24700 Density:1.219g/cm3 Boiling Point:435.8ºC at 760 mmHg Melting Point:N/A	60427-77-2
tert-butyl 4-(3-hydroxyphenyl)piperazine-1-carboxylate	C₁₅H₂₂N₂O₃	Molecular Weight:278.34700 Density:N/A Boiling Point:N/A Melting Point:N/A	198627-86-0
CARBAMIMIDOYL-ACETIC ACID	C₃H₆N₂O₂	Molecular Weight:102.09200 Density:1.49g/cm3 Boiling Point:281.3ºC at 760 mmHg Melting Point:N/A	6710-83-4
5-Amino-2-methoxyisonicotinic acid	C₇H₈N₂O₃	Molecular Weight:168.150 Density:1.4±0.1 g/cm3 Boiling Point:469.5±45.0 °C at 760 mmHg Melting Point:217-221℃	183741-91-5
2-(5-phenylmethoxy-1H-indol-3-yl)ethanol	C₁₇H₁₇NO₂	Molecular Weight:267.32200 Density:N/A Boiling Point:N/A Melting Point:N/A	41339-61-1
1-(3,5-DIFLUOROPHENYL)-2-HYDROXYMETHYL-3-ISOPROPYLINDOLE	C₁₁H₁₂N₂	Molecular Weight:172.22600 Density:1.035g/cm3 Boiling Point:323.831ºC at 760 mmHg Melting Point:N/A	223762-69-4
3-Chlorobenzenecarboximidamide	C₇H₇ClN₂	Molecular Weight:154.597 Density:1.3±0.1 g/cm3 Boiling Point:254.7±42.0 °C at 760 mmHg Melting Point:N/A	25412-62-8
2-Formyl-azepane-1-carboxylic acid tert-butyl ester	C₁₂H₂₁NO₃	Molecular Weight:227.30000 Density:N/A Boiling Point:N/A Melting Point:N/A	146337-41-9
2-Aminoisonicotinamide	C₆H₇N₃O	Molecular Weight:137.139 Density:1.3±0.1 g/cm3 Boiling Point:360.1±27.0 °C at 760 mmHg Melting Point:258°C	13538-42-6
2,3-Dimethoxyxanthone	C₁₅H₁₂O₄	Molecular Weight:256.25300 Density:1.27g/cm3 Boiling Point:423.3ºC at 760 mmHg Melting Point:N/A	42833-49-8
N-Boc-hexahydro-1H-azepin-4-one	C₁₁H₁₉NO₃	Molecular Weight:213.273 Density:1.1±0.1 g/cm3 Boiling Point:308.2±35.0 °C at 760 mmHg Melting Point:37 °C	188975-88-4
7-METHOXY-2H-CHROMENE-3-CARBOXYLIC ACID METHYL ESTER	C₁₂H₁₂O₄	Molecular Weight:220.22100 Density:N/A Boiling Point:N/A Melting Point:N/A	86236-08-0
ETHYL 1H-INDAZOLE-5-CARBOXYLATE	C₁₀H₁₀N₂O₂	Molecular Weight:190.199 Density:1.3±0.1 g/cm3 Boiling Point:353.9±15.0 °C at 760 mmHg Melting Point:138 °C	192944-51-7
1-(4-FLUOROPHENYL)-3-(4-HYDROXYPHENYL)-2-PROPEN-1-ONE	C₁₇H₁₃FN₂	Molecular Weight:264.29700 Density:1.255g/cm3 Boiling Point:414.593ºC at 760 mmHg Melting Point:N/A	60656-06-6
2-Bromo-4-(hydroxymethyl)phenol	C₇H₇BrO₂	Molecular Weight:203.033 Density:1.7±0.1 g/cm3 Boiling Point:307.8±27.0 °C at 760 mmHg Melting Point:128-132°C	29922-56-3
3-(4-AMINOPHENOXY)PIPERIDINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER	C₁₆H₂₄N₂O₃	Molecular Weight:292.37300 Density:1.14g/cm3 Boiling Point:430.3ºC at 760 mmHg Melting Point:N/A	643087-95-0
2-(2,4-dichloro-phenyl)-acetamidine	C₈H₈Cl₂N₂	Molecular Weight:203.06900 Density:N/A Boiling Point:341.1ºC at 760mmHg Melting Point:N/A	310466-16-1
METHYL 4,4-DIPHENYL-2-OXOCYCLOPENTANECARBOXYLATE	C₁₉H₁₈O₃	Molecular Weight:294.34400 Density:1.179g/cm3 Boiling Point:424.8ºC at 760 mmHg Melting Point:N/A	819802-98-7
HEXAHYDRO-CYCLOPENTA[C]PYRROL-4-ONE HYDROCHLORIDE	C₇H₁₂ClNO	Molecular Weight:161.62900 Density:N/A Boiling Point:N/A Melting Point:N/A	127430-46-0
Methyl-3-carboxyl-4-indazole carboxylate	C₁₀H₈N₂O₄	Molecular Weight:220.182 Density:1.5±0.1 g/cm3 Boiling Point:489.8±25.0 °C at 760 mmHg Melting Point:N/A	393553-44-1
Methyl 2-chloronicotinate	C₇H₆ClNO₂	Molecular Weight:171.581 Density:1.3±0.1 g/cm3 Boiling Point:238.2±20.0 °C at 760 mmHg Melting Point:122-124ºC	40134-18-7
3-(trifluoromethyl)benzamidoxime	C₈H₇F₃N₂O	Molecular Weight:204.14900 Density:N/A Boiling Point:N/A Melting Point:87-90 °C(lit.)	40067-80-9
METHYL N-4-BOC-N-1-CBZ-2-PIPERAZINECARBOXYLATE	C₁₉H₂₆N₂O₆	Molecular Weight:378.42000 Density:1.214g/cm3 Boiling Point:476.9ºC at 760 mmHg Melting Point:N/A	126937-42-6
2-(2-CHLORO-6-FLUORO-PHENYL)-ACETAMIDINE	C₈H₈ClFN₂	Molecular Weight:186.61400 Density:1.34g/cm3 Boiling Point:272.6ºC at 760 mmHg Melting Point:N/A	780728-19-0
1-Benzyl 2-methyl 1,2-aziridinedicarboxylate	C₁₂H₁₃NO₄	Molecular Weight:235.236 Density:1.3±0.1 g/cm3 Boiling Point:343.4±42.0 °C at 760 mmHg Melting Point:N/A	170701-87-8
tert-Butyl 1,8-diazaspiro[4.5]decane-1-carboxylate	C₁₃H₂₄N₂O₂	Molecular Weight:240.34200 Density:1.07g/cm3 Boiling Point:337ºC at 760 mmHg Melting Point:N/A	885279-92-5
Ethyl 4-amino-1H-imidazole-5-carboxylate	C₆H₉N₃O₂	Molecular Weight:155.155 Density:1.3±0.1 g/cm3 Boiling Point:391.2±22.0 °C at 760 mmHg Melting Point:N/A	21190-16-9
METHYL (2S)-1-CBZ-1,2,3,4-TETRAHYDRO-2-PYRIDINECARBOXYLATE	C₁₅H₁₇NO₄	Molecular Weight:275.30000 Density:N/A Boiling Point:N/A Melting Point:N/A	227758-97-6
5-methylsulfanyl-1,3,4-triphenylpyrazole	C₂₂H₁₈N₂S	Molecular Weight:342.45700 Density:1.13g/cm3 Boiling Point:487.9ºC at 760 mmHg Melting Point:N/A	475094-43-0
2,6-diphenyl-4-piperidone hcl	C₁₇H₁₈ClNO	Molecular Weight:287.78400 Density:N/A Boiling Point:415.5ºC at 760mmHg Melting Point:N/A	56965-71-0
3-Boc-amino-2,6-dioxopiperidine	C₁₀H₁₆N₂O₄	Molecular Weight:228.245 Density:1.2±0.1 g/cm3 Boiling Point:423.0±34.0 °C at 760 mmHg Melting Point:N/A	31140-42-8