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649757-85-7

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649757-85-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 649757-85-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,5 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 649757-85:
(8*6)+(7*4)+(6*9)+(5*7)+(4*5)+(3*7)+(2*8)+(1*5)=227
227 % 10 = 7
So 649757-85-7 is a valid CAS Registry Number.

649757-85-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-chloro-1-[4-[4-(2-chloro-2-methylpropanoyl)phenoxy]phenyl]-2-methylpropan-1-one

1.2 Other means of identification

Product number -
Other names 1-Propanone,1,1'-(oxydi-4,1-phenylene)bis[2-chloro-2-methyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:649757-85-7 SDS

649757-85-7Relevant articles and documents

Preparation method for alpha-hydroxy ketone bifunctional photoinitiator

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Paragraph 0018; 0021; 0023; 0025; 0027; 0029; 0030, (2020/06/02)

The invention provides a preparation method for an alpha-hydroxy ketone bifunctional photoinitiator. The preparation method comprises the following steps: with 4,4'-diisobutyryl diphenyl ether as a raw material, allowing the 4,4'-diisobutyryl diphenyl ether to react with chlorine, and carrying out hydrolyzing, crystallizing and purifying so as to obtain a product. The preparation method provided by the invention is high in yield, good in product appearance and low in cost, and has advantages in industrial production. In the step of a chlorination reaction, side reactions are effectively controlled; and in the step of hydrolysis, the problem of difficult layering of a water phase and an organic phase generated by using phase transfer catalysis and phase transfer catalysis is avoided.

PROCESS FOR THE PREPARATION OF AROMATIC ALPHA-HYDROXY KETONES

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Page/Page column 14-15, (2010/01/29)

Process for the preparation of aromatic alpha-hydroxyketones (aromatic α- hydroxyketones) that does not require the use of chlorine, sulfuryl chloride or bromine and comprises the halogenation of an intermediate aromatic ketone with a hydrogen halide in the presence of an oxidising compound.

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