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1262985-25-0

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1262985-25-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1262985-25-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,2,9,8 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1262985-25:
(9*1)+(8*2)+(7*6)+(6*2)+(5*9)+(4*8)+(3*5)+(2*2)+(1*5)=180
180 % 10 = 0
So 1262985-25-0 is a valid CAS Registry Number.

1262985-25-0SDS

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 4-(2-amino-5-bromopyridin-3-yl)-2-methylbut-3-yn-2-ol

1.2 Other means of identification

Product number -
Other names -

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:1262985-25-0 SDS

1262985-25-0Relevant articles and documents

Preparation method for 5-bromo-7-azindole

-

, (2019/04/17)

The invention belongs to the technical field of preparation of 5-bromo-7-azindole, in particular to a preparation method for the 5-bromo-7-azindole. The method comprises the following steps: taking 2-amino-5-bromopyridine as a raw material, and performing the steps in sequence: (1) introducing iodine through an iodine reagent; (2) performing a coupling reaction with methylbutynol; and (3) performing a ring-closing reaction under the catalysis of inorganic strong base to prepare the 5-bromo-7-azindole, wherein the catalyst adopted in the coupling reaction in the step (2) is bis(benzonitrile)palladium dichloride or [1,1'-bis(diphenylphosphine)ferrocene]palladium dichloromethane dichloride complex compound. According to the preparation method, cheap 2-amino-5-bromopyridine is taken as the rawmaterial in the step (1); the catalyst with high catalyzing efficiency and a solvent which is easy to treat are adopted; purifying steps in each step are simple; the yield is high; and the and the yield of the finally prepared product, namely, the 5-bromo-7-azindole, can reach over 93 percent.

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