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5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon

5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon structure

CAS No.: 36916-19-5

Chemical Name:: 5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon

Synonyms: Alprazolam EP Impurity C;Alprazolam Impurity 3（Alprazolam EP Impurity C）;5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon;5-Chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone;4-(2-benzoyl-4-chlorophenyl)-3-methyl-4H-1,2,4-triazole;methyl (R,Z)-3-hydroxy-2-(N-(1-phenylethyl)formamido)acrylate;Methanone, [5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)phenyl]phenyl-;c . [5-c h loro-2-[3-me th yl-4h -1,2,4-tri a zol-4-yl]ph e nyl]ph e nylme th a none ,

CBNumber:: CB51476731

Molecular Formula:: C16H12ClN3O

Molecular Weight:: 297.74

MDL Number:

MOL File:: 36916-19-5.mol

Last updated:2026-09-12 18:53:12

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5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon Properties

Melting point	161-163°C
Boiling point	529.8±60.0 °C(Predicted)
Density	1.29±0.1 g/cm3(Predicted)
storage temp.	Refrigerator
solubility	DMSO (Slightly), Methanol (Slightly)
form	Solid
pka	2.44±0.10(Predicted)
color	White to Light Yellow
FDA UNII	LWT0XBZ74S

SAFETY

Risk and Safety Statements

REACH Registrations	Active

5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon price More Price(21)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	TRC-C369550-10MG	5-Chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone >95%(HPLC)	36916-19-5	10mg	$249	2026-06-03	Buy
TRC	TRC-C369550-100MG	5-Chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone >95%(HPLC)	36916-19-5	100mg	$1941	2026-06-03	Buy
Biosynth	LBA91619	5-Chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone	36916-19-5	50mg	$731.5	2026-06-04	Buy
Biosynth	LBA91619	5-Chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone	36916-19-5	0.5g	$2324.6	2026-06-04	Buy
aablocks	AA00C9OH	4-(2-Benzoyl-4-chlorophenyl)-3-methyl-4h-1,2,4-triazole >95%(HPLC)	36916-19-5	10mg	$320	2026-05-28	Buy

Product number	Packaging	Price	Buy
TRC-C369550-10MG	10mg	$249	Buy
TRC-C369550-100MG	100mg	$1941	Buy
LBA91619	50mg	$731.5	Buy
LBA91619	0.5g	$2324.6	Buy
AA00C9OH	10mg	$320	Buy

5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon Chemical Properties, Uses, Production

Chemical Properties

Off-White Solid

Uses

An impurity of Alprazolam (A575650).

5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon Preparation Products And Raw materials

Raw materials

Preparation Products

5-chloro-2-[3-(hydroxymethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone

5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon Suppliers

Global Suppliers ( 58)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32273	50
S.Z. PhyStandard Bio-Tech. Co., Ltd.	0755-4000505016 13380397412	3001272453@qq.com	China	5000	50
Shanghai TaoSu Biochemical Technology Co., Ltd.	021-33632979	info@tsbiochem.com	China	8039	58
Quality Control Solutions Ltd.	0755-66853366 13670046396	orders@qcsrm.com	China	18188	56
Shandong Boluoda Biological Technology Co., Ltd.	0531-68651502	2310993908@qq.com	China	3228	58
Shanghai Haozhixiang Biotechnology Co., Ltd	526763801 13301653310	526763801@qq.com	China	7983	55
Shanghai Rechem science Co., Ltd.	021-31433387 15618786686	sales@rechemscience.com	China	2969	58
Shenzhen SUNGENING Bio-Medical Co., Ltd.	0755-28967200 13631290199	wxf@sungening.com	China	9609	60
Shenzhen Polymeri Biochemical Technology Co., Ltd.	+86-400-002-6226	sales@rrkchem.com	China	57336	58

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Chemsky（shanghai）International Co.,Ltd.	50
S.Z. PhyStandard Bio-Tech. Co., Ltd.	50
Shanghai TaoSu Biochemical Technology Co., Ltd.	58
Quality Control Solutions Ltd.	56
Shandong Boluoda Biological Technology Co., Ltd.	58
Shanghai Haozhixiang Biotechnology Co., Ltd	55
Shanghai Rechem science Co., Ltd.	58
Shenzhen SUNGENING Bio-Medical Co., Ltd.	60
Shenzhen Polymeri Biochemical Technology Co., Ltd.	58

36916-19-5 (5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon) Related Search:

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3-amino-6-chloro-2-methyl-4-phenylquinazolin-4-ol Alprazolam EP Impurity H 5-chloro-2-[3-(hydroxymethyl)-5-methyl-4H-1,2,4-triazol-4-yl]benzophenone

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Alprazolam Impurity 3（Alprazolam EP Impurity C） 5-Chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)benzophenone Alprazolam EP Impurity C Methanone, [5-chloro-2-(3-methyl-4H-1,2,4-triazol-4-yl)phenyl]phenyl- 4-(2-benzoyl-4-chlorophenyl)-3-methyl-4H-1,2,4-triazole c . [5-c h loro-2-[3-me th yl-4h -1,2,4-tri a zol-4-yl]ph e nyl]ph e nylme th a none , methyl (R,Z)-3-hydroxy-2-(N-(1-phenylethyl)formamido)acrylate 5-Chloor-2-(3-methyl-4H-1,2,4-triazool-4-yl)benzofenon 36916-19-5 Aromatics Heterocycles Impurities Intermediates & Fine Chemicals Pharmaceuticals Aromatics, Heterocycles, Impurities, Pharmaceuticals, Intermediates & Fine Chemicals