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1,13-Etheno-4,21a-methano-1H-azocino[1',2':1,5]pyrrolo[3,2-e]azacyclopentadecine-24-carboxaldehyde,2,3,5,6,7,8,11,12,13,13a,15,16,17,18,20a,21-hexadecahydro-13-hydroxy-, (1R,4S,9Z,13S,13aR,20aR,21aR)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139975-55-6

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139975-55-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139975-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,7 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139975-55:
(8*1)+(7*3)+(6*9)+(5*9)+(4*7)+(3*5)+(2*5)+(1*5)=186
186 % 10 = 6
So 139975-55-6 is a valid CAS Registry Number.

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