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1183116-13-3

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1183116-13-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1183116-13-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,3,1,1 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1183116-13:
(9*1)+(8*1)+(7*8)+(6*3)+(5*1)+(4*1)+(3*6)+(2*1)+(1*3)=123
123 % 10 = 3
So 1183116-13-3 is a valid CAS Registry Number.

1183116-13-3Relevant articles and documents

NEW CRYSTAL OF BENZIMIDAZOLE COMPOUND, AND PRODUCTION METHOD THEREOF

-

, (2018/10/10)

PROBLEM TO BE SOLVED: To provide a new crystal of 2-[2-methyl-1-(tetrahydro-2H-pyran-4-yl)-1H-benzimidazole-5-yl]-1,3- benzoxazole having excellent storage stability capable of maintaining the same quality, when being stored as a pharmaceutical technical

Direct synthesis of a pde4 inhibitor by using pd-cu-catalyzed c-h/c-br coupling of benzoxazole with a heteroaryl bromide

Kuroda, Kiichi,Tsuyumine, Shinjiro,Kodama, Tomohiro

, p. 1053 - 1058 (2017/01/16)

A short and practical synthetic route of a PDE4 inhibitor (1) was established by using Pd-Cu-catalyzed C-H/ C-Br coupling of benzoxazole with a heteroaryl bromide. The combination of Pd(OAc)2-Cu(OTf)2-PPh3 was found to be

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