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1172131-68-8

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1172131-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1172131-68-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,1,3 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1172131-68:
(9*1)+(8*1)+(7*7)+(6*2)+(5*1)+(4*3)+(3*1)+(2*6)+(1*8)=118
118 % 10 = 8
So 1172131-68-8 is a valid CAS Registry Number.

1172131-68-8Downstream Products

1172131-68-8Relevant articles and documents

Preparation method of pyrimidinone amide type compound

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, (2018/10/19)

The invention discloses a pyrimidinone amide type compound and a preparation method thereof. A pyrimidinone compound is taken as a starting material and is subjected to four-step chemical conversion to obtain TN-A005 and an analogue thereof, and an intermediate can be prepared from methyl tetrazole. A one-pot method is used for feeding in the whole preparation process, post-treatment purificationof each step is recrystallization or dispersion washing, the use of means such as silica gel column chromatography is avoided, the preparation technology is greatly simplified, the preparation efficiency is improved, and the total yield can reach 50%. The method is simple and convenient in preparation steps and can improve the preparation efficiency.

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