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Spiro[1,3-dithiane-2,3'(7'H)-[2H]pyrano[2,3-c]pyridine]-7'-carboxylic acid, 4',5',6',8'-tetrahydro-4'-oxo-, methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91305-66-7

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91305-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91305-66-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,3,0 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91305-66:
(7*9)+(6*1)+(5*3)+(4*0)+(3*5)+(2*6)+(1*6)=117
117 % 10 = 7
So 91305-66-7 is a valid CAS Registry Number.

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