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(1S,2R)-2-[(E)-(R)-3-((1aR,3aR,3bS,5aR,6R,8aS,8bS,10R)-10-Methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-but-1-enyl]-cyclopropanecarboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91509-40-9

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91509-40-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91509-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,0 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91509-40:
(7*9)+(6*1)+(5*5)+(4*0)+(3*9)+(2*4)+(1*0)=129
129 % 10 = 9
So 91509-40-9 is a valid CAS Registry Number.

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