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1,1-Dimethylethyl (+/-)-(1'α,4'aβ,4'bα,8'aβ)-3',4',4'a,4'b,5',6',7',8',8'a,9'-decahydro-7'-(methoxycarbonyl)-1',4'a,8'a-trimethyl-6'-oxospiro<1,3-dioxolane-2,2'(1'H)-phenanthrene>-8'acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91191-80-9

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91191-80-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91191-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,9 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91191-80:
(7*9)+(6*1)+(5*1)+(4*9)+(3*1)+(2*8)+(1*0)=129
129 % 10 = 9
So 91191-80-9 is a valid CAS Registry Number.

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