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ChemicalBook >> CAS DataBase List >>4,5-dichloro-3,6-dihydroxy-phthalonitrile

4,5-dichloro-3,6-dihydroxy-phthalonitrile

4,5-dichloro-3,6-dihydroxy-phthalonitrile Structure
4,5-dichloro-3,6-dihydroxy-phthalonitrile structure
CAS No.
4640-41-9
Chemical Name:
4,5-dichloro-3,6-dihydroxy-phthalonitrile
Synonyms
Finasteride GT;Finasteride Impurity 8;Brexpiprazole Impurity 54;2,3-dichloro-5,6-dicyanohydroquinone;dichloro-3,6-dihydroxybenzene-1,2-dicarbonitrile;4,5-Dichloro-3,6-dihydroxyphthalonitrile 4640-41-9;1,2-Benzenedicarbonitrile, 4,5-dichloro-3,6-dihydroxy-;4,5-dichloro-3,6-dihydroxyphthalonitrile? (Brexpiprazole Impurity）
CBNumber:
CB83221633
Molecular Formula:
C8H2Cl2N2O2
Molecular Weight:
229.02
MDL Number:
MFCD08445593
MOL File:
4640-41-9.mol
Last updated:2022-08-26 12:12:34
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4,5-dichloro-3,6-dihydroxy-phthalonitrile Properties

Melting point 265 °C (decomp)(Solv: water (7732-18-5); ethanol (64-17-5))
Boiling point 365.8±42.0 °C(Predicted)
Density 1.80±0.1 g/cm3(Predicted)
pka 3.79±0.33(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

4,5-dichloro-3,6-dihydroxy-phthalonitrile Preparation Products And Raw materials

Raw materials

Preparation Products

4,5-dichloro-3,6-dihydroxy-phthalonitrile Suppliers

Global( 37)Suppliers
Supplier Tel Email Country ProdList Advantage
Standardpharm Co. Ltd. 		86-714-3992388 overseasales1@yongstandards.com United States 14336 58
Zhengzhou Alfa Chemical Co.,Ltd 		+8618530059196 sale04@alfachem.cn China 12922 58
ShenZhen Trendseen Biological Technology Co.,Ltd. 		13417589054 trendseenbio@gmail.com China 11681 58
China National Standard Pharmaceutical Corporation Limited 		+8615391658522 overseasales@yongstandards.com China 11927 58
ChemStrong Scientific Co.,Ltd 0755-0755-66853366 13670046396 sales@chem-strong.com China 18018 56
Shandong Boluoda Biological Technology Co., Ltd. 0531-58190570 15863796298 2310993908@qq.com China 620 58
Shanghai Xiang Xin Industrial Co., Ltd. 021-50211651 13651607026 sales@xxgmpharm.com China 494 58
Hubei Yangxin Medical Technology Co., Ltd. 15374522761 3003392093@qq.com China 8255 55
Zhengzhou Kangshan Biological Co., Ltd. +86-0371-55023472 +86-13663848272 2584787837@qq.com China 238 58
PI & PI BIOTECH INC. 020-81716320 17788709170 Sales@pipitech.com China 2649 58
Supplier Advantage
Standardpharm Co. Ltd. 		58
Zhengzhou Alfa Chemical Co.,Ltd 		58
ShenZhen Trendseen Biological Technology Co.,Ltd. 		58
China National Standard Pharmaceutical Corporation Limited 		58
ChemStrong Scientific Co.,Ltd 56
Shandong Boluoda Biological Technology Co., Ltd. 58
Shanghai Xiang Xin Industrial Co., Ltd. 58
Hubei Yangxin Medical Technology Co., Ltd. 55
Zhengzhou Kangshan Biological Co., Ltd. 58
PI & PI BIOTECH INC. 58

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Finasteride GT 2,3-dichloro-5,6-dicyanohydroquinone Brexpiprazole Impurity 54 1,2-Benzenedicarbonitrile, 4,5-dichloro-3,6-dihydroxy- dichloro-3,6-dihydroxybenzene-1,2-dicarbonitrile Finasteride Impurity 8 4,5-Dichloro-3,6-dihydroxyphthalonitrile 4640-41-9 4,5-dichloro-3,6-dihydroxyphthalonitrile? (Brexpiprazole Impurity） 4640-41-9