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156817-94-6

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156817-94-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156817-94-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,8,1 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 156817-94:
(8*1)+(7*5)+(6*6)+(5*8)+(4*1)+(3*7)+(2*9)+(1*4)=166
166 % 10 = 6
So 156817-94-6 is a valid CAS Registry Number.

156817-94-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-ethylpyrimidin-5-amine

1.2 Other means of identification

Product number -
Other names 5-pyrimidinamine,4-ethyl

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:156817-94-6 SDS

156817-94-6Downstream Products

156817-94-6Relevant articles and documents

Preparation method of 4-ethyl-5-aminopyrimidine

-

Paragraph 0028-0029; 0032-0036; 0039-0042; 0045-0046, (2021/07/31)

The invention discloses 4-ethyl-5-aminopyrimidine. A preparation method comprises the following specific steps: (1) taking 4-bromo-5-aminopyrimidine and tributyl vinyl tin as initial raw materials, and carrying out Schpeller coupling reaction to prepare the 4-vinyl-5-aminopyrimidine; and (2) taking the 4-vinyl-5-aminopyrimidine as an initial raw material, and carrying out palladium-carbon hydrogenation reaction to prepare the 4-ethyl-5-aminopyrimidine. The method is short in process route, few in reaction reagent types, convenient to operate, mild in reaction condition and easy to control, industrialization is easy to achieve, the product is easy to purify, the yield is high, and unreported molecules provide more possibilities for new drug research and development work.

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