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1223536-22-8

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1223536-22-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1223536-22-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,3,5,3 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1223536-22:
(9*1)+(8*2)+(7*2)+(6*3)+(5*5)+(4*3)+(3*6)+(2*2)+(1*2)=118
118 % 10 = 8
So 1223536-22-8 is a valid CAS Registry Number.

1223536-22-8Relevant articles and documents

A flexible asymmetric synthesis of the tetracyclic core of berkelic acid using a Horner-Wadsworth-Emmons/oxa-Michael cascade

Wilson, Zoe E.,Brimble, Margaret A.

supporting information; experimental part, p. 1284 - 1286 (2010/06/13)

The one-pot Horner-Wadsworth-Emmons/oxa-Michael cascade followed by spiroketalisation affords the tetracyclic benzannulated spiroketal core of berkelic acid, an extremophile natural product with selective activity against ovarian cancer.

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