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216861-21-1

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216861-21-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216861-21-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,8,6 and 1 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 216861-21:
(8*2)+(7*1)+(6*6)+(5*8)+(4*6)+(3*1)+(2*2)+(1*1)=131
131 % 10 = 1
So 216861-21-1 is a valid CAS Registry Number.

216861-21-1Relevant articles and documents

ASYMMETRIC REDUCTION OF ACETOPHENONE WITH CHIRAL REAGENTS FROM LITHIUM TETRAHYDROALUMINATE AND CHIRAL 1,2-DIOL OR DIAMINE AS STUDIED BY ALUMINUM-27 NUCLEAR MAGNETIC RESONANCE

Yamashita, Junzo,Tomiyama, Shigemi,Hashimoto, Harukichi,Kitahara, Keiichi,Sato, Hisao

, p. 749 - 752 (1984)

Asymmetric reduction of acetophenone with chiral reagents from lithium tetrahydroaluminate and (1S,2S)-1,2-diphenylethanediol or (1S,2S)-N,N'-diethyl-1,2-diphenylethanediamine in the presence or absence of added ethanol is studied by aluminum-27 NMR spectroscopy.

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