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72637-18-4

72637-18-4

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72637-18-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72637-18-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,3 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72637-18:
(7*7)+(6*2)+(5*6)+(4*3)+(3*7)+(2*1)+(1*8)=134
134 % 10 = 4
So 72637-18-4 is a valid CAS Registry Number.

72637-18-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-Chloro-5-(dichloromethyl)pyridine

1.2 Other means of identification

Product number -
Other names 5-(dichloromethyl)-2-chloropyridine

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:72637-18-4 SDS

72637-18-4Upstream product

72637-18-4Relevant articles and documents

Refining and purification method and drying treatment apparatus for 2-chloronicotinic acid

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Paragraph 0027; 0029; 0034; 0038; 0040; 0045; 0049; 0051, (2019/10/01)

The invention discloses a refining and purification method and a drying treatment apparatus for 2-chloronicotinic acid. The method comprises the following steps: reacting 3-methylpyridine with chlorine to produce 2-chloro-3-trichloromethylpyridine; hydrolyzing 2-chloro-3-trichloromethylpyridine to obtain a 2-chloronicotinic acid reaction product; and purifying and drying the 2-chloronicotinic acidreaction product by using the apparatus. The apparatus is applicable to drying treatment of 2-chloronicotinic acid and has a simple structure. The refining and purification method for 2-chloronicotinic acid can greatly improve the quality and purity of a 2-chloronicotinic acid product.

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