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178688-33-0

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178688-33-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178688-33-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,6,8 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 178688-33:
(8*1)+(7*7)+(6*8)+(5*6)+(4*8)+(3*8)+(2*3)+(1*3)=200
200 % 10 = 0
So 178688-33-0 is a valid CAS Registry Number.

178688-33-0Upstream product

178688-33-0Relevant articles and documents

2-silyloxy-tetrahydrothienopyridine, salt thereof and process for preparing the same

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, (2008/06/13)

A 2-silyloxy-4,5,6,7-tetrahydrothieno[3,2-c]pyridine represented by the formula (I): STR1 wherein R 1, R 2 and R 3 each independently represent an alkyl group having 1 to 10 carbon atoms or an aryl group,and a salt thereof and a process for preparing the same, and a 5-alkyl-2-silyloxy-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine represented by the formula (IV): STR2 wherein R 1, R 2 and R 3 represent the same meanings as described above; R 4 represents a hydrogen atom, an alkoxycarbonyl group having 2 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms or a cyclo-alkylcarbonyl group having 4 to 10 carbon atoms; andR 5 represents a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms,which is useful as a synthetic intermediate of an antiplatelet medicine and an elastase inhibitor, etc., and a process for preparing the same.

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