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
5-Amino-3-methyl-1,2-benzisothiazole	C₈H₈N₂S	Molecular Weight:164.22800 Density:1.315g/cm3 Boiling Point:246.2ºC at 760 mmHg Melting Point:N/A	73437-03-3
2-ETHYL-1H-IMIDAZOLE-4-CARBOXYLIC ACID	C₆H₈N₂O₂	Molecular Weight:140.14000 Density:1.318g/cm3 Boiling Point:447.29ºC at 760 mmHg Melting Point:N/A	84255-21-0
6-(1-FLUOROETHYL)-4(1H)-PYRIMIDINONE	C₆H₇FN₂O	Molecular Weight:142.13100 Density:N/A Boiling Point:N/A Melting Point:N/A	227184-11-4
(S)-2-(Benzyloxycarbonylamino)-3-butenoic acid methyl ester	C₁₃H₁₅NO₄	Molecular Weight:249.262 Density:1.153 Boiling Point:387.9±42.0 °C at 760 mmHg Melting Point:35-36ºC	75266-40-9
1-Phenyl-2,4-pentanedione	C₁₁H₁₂O₂	Molecular Weight:176.21200 Density:1.061g/cm3 Boiling Point:277.7ºC at 760mmHg Melting Point:N/A	3318-61-4
2,4-Diphenyl-1,3-cyclobutanedicarboxylic acid	C₁₈H₁₆O₄	Molecular Weight:296.31700 Density:1.323 g/cm3 Boiling Point:470.5ºC at 760mmHg Melting Point:N/A	4462-95-7
ISOPROPYL 4-AMINOPIPERIDINE-1-CARBOXYLATE	C₉H₁₈N₂O₂	Molecular Weight:186.25100 Density:N/A Boiling Point:N/A Melting Point:N/A	502931-34-2
3-chloro-2,6-dihydroxybenzoic acid	C₇H₅ClO₄	Molecular Weight:188.56500 Density:1.702g/cm3 Boiling Point:339.4ºC at 760 mmHg Melting Point:189-193ºC	26754-77-8
(4-methylphenyl)-piperidin-4-ylmethanone	C₁₃H₁₇NO	Molecular Weight:203.28000 Density:N/A Boiling Point:N/A Melting Point:N/A	74130-04-4
5-Amino-6-methylaminoquinoline	C₁₀H₁₁N₃	Molecular Weight:173.21400 Density:1.25g/cm3 Boiling Point:372.2ºC at 760mmHg Melting Point:162-172ºC	14204-98-9
3-butenamide	C₄H₇NO	Molecular Weight:85.10450 Density:N/A Boiling Point:N/A Melting Point:N/A	432491-67-3
triiodoacetic acid	C₂HI₃O₂	Molecular Weight:437.74200 Density:3.884g/cm3 Boiling Point:347.7ºC at 760mmHg Melting Point:135-140ºC	594-68-3
Prolylleucine	C₁₉H₂₆N₂O₅	Molecular Weight:362.42000 Density:1.224g/cm3 Boiling Point:593.7ºC at 760 mmHg Melting Point:N/A	61596-47-2
z-asp-ome dcha	C₂₅H₃₈N₂O₆	Molecular Weight:462.57900 Density:N/A Boiling Point:N/A Melting Point:N/A	19720-12-8
Z-Phe-Phe-OH	C₂₆H₂₆N₂O₅	Molecular Weight:446.49500 Density:1.253g/cm3 Boiling Point:730.2ºC at 760mmHg Melting Point:159ºC	13122-91-3
Ethyl 3-(6,7-Dibromo-2,3-Dihydrobenzofuran-5-Yl)Propanoate	C₁₃H₁₄Br₂O₃	Molecular Weight:378.05600 Density:1.66g/cm3 Boiling Point:413.207ºC at 760 mmHg Melting Point:42-43ºC	196597-75-8
Pridopidine	C₁₅H₂₃NO₂S	Molecular Weight:281.41400 Density:1.093g/cm3 Boiling Point:434.205ºC at 760 mmHg Melting Point:73-75ºC	346688-38-8
N-Succinyl-L-Tyrosine	C₁₃H₁₅NO₆	Molecular Weight:281.26100 Density:N/A Boiling Point:N/A Melting Point:N/A	374816-32-7
Loratadine Impurity 25	C₂₃H₂₅ClN₂O₃	Molecular Weight:412.90900 Density:N/A Boiling Point:N/A Melting Point:76-78ºC	609806-39-5
H-Gly-Lys-OH · HCl	C₈H₁₈ClN₃O₃	Molecular Weight:239.70000 Density:N/A Boiling Point:N/A Melting Point:N/A	31461-63-9
H-Pro-Pro-OH · HCl	C₁₀H₁₇ClN₂O₃	Molecular Weight:248.70700 Density:N/A Boiling Point:N/A Melting Point:N/A	76932-06-4
ETHYL 3-(1,3-DIOXOLANE)HEXANOATE	C₁₀H₁₈O₄	Molecular Weight:202.24800 Density:1.024g/cm3 Boiling Point:247.6ºC at 760 mmHg Melting Point:N/A	76924-94-2
(Boc-Cys-OH)2	C₁₆H₂₈N₂O₈S₂	Molecular Weight:440.532 Density:1.3±0.1 g/cm3 Boiling Point:627.4±55.0 °C at 760 mmHg Melting Point:140-145ºC	10389-65-8
7-Hydroxy Prochlorperazine	C₂₀H₂₄ClN₃OS	Molecular Weight:389.94200 Density:1.276g/cm3 Boiling Point:569.962ºC at 760 mmHg Melting Point:196-197ºC	52172-19-7
H-Pro-Met-OH	C₁₀H₁₈N₂O₃S	Molecular Weight:246.33 Density:N/A Boiling Point:N/A Melting Point:N/A	52899-08-8
7-chloro-5-(2-fluorophenyl)-N-methyl-3H-1,4-benzodiazepin-2-amine	C₁₆H₁₃ClFN₃	Molecular Weight:301.74600 Density:1.31g/cm3 Boiling Point:472.2ºC at 760 mmHg Melting Point:N/A	59467-61-7
Z-Ala-Phe-OH	C₂₀H₂₂N₂O₅	Molecular Weight:370.39900 Density:1.253 g/cm3 Boiling Point:643.7ºC at 760 mmHg Melting Point:N/A	2768-53-8
7,8-DIAMINOPELARGONIC ACID	C₉H₂₀N₂O₂	Molecular Weight:188.26700 Density:1.046g/cm3 Boiling Point:349.8ºC at 760mmHg Melting Point:N/A	21738-21-6
Nω-Phospho-L-arginine lithium salt hydrate	C₆H₁₅N₄O₅P	Molecular Weight:254.18 Density:1.82g/cm3 Boiling Point:562.2ºC at 760mmHg Melting Point:>205°C (dec)	1189-11-3
Boc-Ala-Ala-OMe	C₁₂H₂₂N₂O₅	Molecular Weight:274.31300 Density:1.101 Boiling Point:N/A Melting Point:110-111℃	19794-10-6
cis-Tetrahydrofuran-2,5-dicarboxylic acid	C₆H₈O₅	Molecular Weight:160.12500 Density:1.535g/cm3 Boiling Point:425.5ºC at 760 mmHg Melting Point:195-200ºC	2240-81-5
4-Ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydro-imidazo[5,1-f][1,2,4]-triazin-2-yl)benzene-sulfonyl Chloride	C₁₇H₁₉ClN₄O₄S	Molecular Weight:410.87500 Density:N/A Boiling Point:N/A Melting Point:N/A	224789-26-8
tert-Butyl 6-Hydroxyhexanoate	C₁₀H₂₀O₃	Molecular Weight:188.26400 Density:0.967g/cm3 Boiling Point:246.8ºC at 760 mmHg Melting Point:N/A	73839-20-0
Naloxone 3-b-D-Glucuronide	C₂₅H₂₉NO₁₀	Molecular Weight:503.49800 Density:N/A Boiling Point:N/A Melting Point:214-216ºC	22135-79-1
5-(Trifluoromethyl)-4H-1,2,4-triazole-3-thiol	C₃H₂F₃N₃S	Molecular Weight:169.12800 Density:1.89g/cm3 Boiling Point:91.7ºC at 760 mmHg Melting Point:161ºC	68744-64-9
7-methoxy-1H-pyrrolo[2,3-c]pyridin-4-ol	C₈H₈N₂O₂	Molecular Weight:164.16100 Density:1.396g/cm3 Boiling Point:506.8ºC at 760 mmHg Melting Point:N/A	936470-68-7
Methyl 4-anilino-1-benzyl-4-piperidinecarboxylate	C₂₀H₂₄N₂O₂	Molecular Weight:324.417 Density:1.2±0.1 g/cm3 Boiling Point:450.4±45.0 °C at 760 mmHg Melting Point:75-79 °C	61085-60-7
2-(6-methoxynaphthalen-2-yl)acetonitrile	C₁₃H₁₁NO	Molecular Weight:197.23300 Density:1.135g/cm3 Boiling Point:374.348ºC at 760 mmHg Melting Point:N/A	71056-96-7
Z-Glu-Gly-OH	C₁₅H₁₈N₂O₇	Molecular Weight:338.31 Density:1.377g/cm3 Boiling Point:715.2ºC at 760mmHg Melting Point:N/A	1634-89-5
Risperidone E-oxime	C₂₃H₂₈F₂N₄O₂	Molecular Weight:430.491 Density:1.3±0.1 g/cm3 Boiling Point:569.0±60.0 °C at 760 mmHg Melting Point:N/A	691007-09-7
rac D 617 (Verapamil Metabolite)	C₁₇H₂₆N₂O₂	Molecular Weight:290.40100 Density:1.004g/cm3 Boiling Point:429.1ºC at 760mmHg Melting Point:N/A	34245-14-2
Endoxifen	C₂₅H₂₇NO₂	Molecular Weight:373.48700 Density:1.099g/cm3 Boiling Point:519.3ºC at 760mmHg Melting Point:N/A	110025-28-0
5-[(2S)-2-[2-(2-ethoxyphenoxy)ethylamino]propyl]-2-methoxybenzenesulfonamide,hydrochloride	C₂₀H₂₉ClN₂O₅S	Molecular Weight:444.97300 Density:N/A Boiling Point:N/A Melting Point:N/A	106463-19-8
Isocarboxazid	C₁₂H₁₃N₃O₂	Molecular Weight:231.251 Density:1.2±0.1 g/cm3 Boiling Point:394.5±42.0 °C at 760 mmHg Melting Point:98-100ºC	59-63-2
Boc-Pro-ONP	C₁₆H₂₀N₂O₆	Molecular Weight:336.34000 Density:1.284g/cm3 Boiling Point:463.6ºC at 760mmHg Melting Point:N/A	28310-65-8
Tos-L-Arg-NH2 * HCl	C₁₃H₂₂ClN₅O₃S	Molecular Weight:363.863 Density:N/A Boiling Point:N/A Melting Point:N/A	14279-64-2
H-Gly-DL-Abu-OH	C₆H₁₂N₂O₃	Molecular Weight:160.17100 Density:N/A Boiling Point:N/A Melting Point:230°C(分解)	7369-76-8
H-ALA-AMC TFA	C₁₅H₁₅F₃N₂O₅	Molecular Weight:360.28500 Density:N/A Boiling Point:490.1ºC at 760mmHg Melting Point:200-206ºC (lit.)	96594-10-4
N-methyl-L-glutamic acid	C₆H₁₂ClNO₄	Molecular Weight:197.617 Density:1.278g/cm3 Boiling Point:330.2ºC at 760mmHg Melting Point:N/A	35989-16-3
Picein	C₁₄H₁₈O₇	Molecular Weight:298.28900 Density:1.433 g/cm3 Boiling Point:562.6ºC at 760 mmHg Melting Point:195ºC	530-14-3