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154843-64-8

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154843-64-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 154843-64-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,8,4 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 154843-64:
(8*1)+(7*5)+(6*4)+(5*8)+(4*4)+(3*3)+(2*6)+(1*4)=148
148 % 10 = 8
So 154843-64-8 is a valid CAS Registry Number.

154843-64-8Relevant articles and documents

Investigation of the Structures of Some Natural Products from the Neem Tree

Bendall, Justin G.,Cambie, Richard C.,Rutledge, Peter S.,Woodgate, Paul D.

, p. 1825 - 1844 (2007/10/02)

Podocarpic acid (1) and totarol (2) have been converted into five diterpenoids reported to have been isolated from the Neem tree.The synthetic diterpenoids have been compared with the naturally occurring diterpenoids but only the structure of nimbidiol (23) has been confirmed.The structure for margosolone, which was reported as (19), has been revised to (20) after synthesis of both (19) and (20).

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