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161988-96-1

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161988-96-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161988-96-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,8 and 8 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 161988-96:
(8*1)+(7*6)+(6*1)+(5*9)+(4*8)+(3*8)+(2*9)+(1*6)=181
181 % 10 = 1
So 161988-96-1 is a valid CAS Registry Number.

161988-96-1Downstream Products

161988-96-1Relevant articles and documents

Chiral acetylenic sulfoxides in organic synthesis: Secondary amine cyclization and total synthesis of (S)-(-)-carnegine

Chan, Winghong,Lee, Albert W. M.,Jiang, Lasheng

, p. 715 - 718 (2007/10/02)

Michael addition of secondary amines 1b-1g onto chiral acetylenic sulfoxides 2 followed by acid induced cyclization afforded structures of tetrahydroisoquinoline skeleton in high to moderate diastereoselectivity. Optical pure (S)-(-)-carnegine has been sy

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