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219975-11-8

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219975-11-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219975-11-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,9,7 and 5 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 219975-11:
(8*2)+(7*1)+(6*9)+(5*9)+(4*7)+(3*5)+(2*1)+(1*1)=168
168 % 10 = 8
So 219975-11-8 is a valid CAS Registry Number.

219975-11-8Relevant academic research and scientific papers

Organocatalyzed asymmetric synthesis of morphans

Bradshaw, Ben,Parra, Claudio,Bonjoch, Josep

, p. 2458 - 2461 (2013)

A general effective organocatalyzed synthesis of enantioenriched morphans with up to 92% ee was developed. The morphan scaffold was constructed in a one-pot tandem asymmetric organocatalyzed Michael addition followed by a domino Robinson annulation/aza-Michael intramolecular reaction sequence from easily available starting materials.

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