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176244-00-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 176244-00-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,2,4 and 4 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 176244-00:
131 % 10 = 1
So 176244-00-1 is a valid CAS Registry Number.

176244-00-1Relevant articles and documents

The first example of enantioselective protonation of prochiral enolates with chiral γ-hydroxyselenoxides

Takahashi, Tamiko,Nakao, Naoki,Koizumi, Toru

, p. 207 - 208 (1996)

Enantioselective protonation of a simple enolate has been developed using an optically pure γ-hydroxyselenoxide 1 as a chiral proton source. Reaction of zinc bromide enolate 7b with (Sse)-selenoxide (Sse)-1c gave (S)-2-benzylcyclohexanone (S)-8 with high enantioselectivity. Intramolecular hydrogen bonding between hydroxy group and seleninyl-oxygen of 1 would contribute to this asymmetric induction.

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