1234836-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1234836-23-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,8,3 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1234836-23:
(9*1)+(8*2)+(7*3)+(6*4)+(5*8)+(4*3)+(3*6)+(2*2)+(1*3)=147
147 % 10 = 7
So 1234836-23-7 is a valid CAS Registry Number.
1234836-23-7Relevant articles and documents
Preparation method of nilaparib intermediate
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Paragraph 0045; 0074-0087, (2021/10/05)
The preparation method comprises the following steps: in a reaction solvent, a compound 1 and a compound 2 are reacted under the synergistic catalysis of a photocatalyst and Ni catalyst to obtain compound 3, and compound 3 is a nilaparib intermediate. Whe
