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7-(1-CARBOXYETHYL)-2-METHYL-4-OXO-4,7-DIHYDROTHIENO[2,3-B]PYRIDINE-5-CARBOXYLIC ACID is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

67637-75-6

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67637-75-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67637-75-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,3 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 67637-75:
(7*6)+(6*7)+(5*6)+(4*3)+(3*7)+(2*7)+(1*5)=166
166 % 10 = 6
So 67637-75-6 is a valid CAS Registry Number.
InChI:InChI=1/C12H11NO5S/c1-5-3-7-9(14)8(12(17)18)4-13(10(7)19-5)6(2)11(15)16/h3-4,6H,1-2H3,(H,15,16)(H,17,18)

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