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(+/-)-5-(E)-prostaglandin E2 tert-butyl ester 9-cumyl ether 15-benzyloxymethyl ether is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

73448-23-4

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73448-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73448-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,4 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 73448-23:
(7*7)+(6*3)+(5*4)+(4*4)+(3*8)+(2*2)+(1*3)=134
134 % 10 = 4
So 73448-23-4 is a valid CAS Registry Number.

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