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91548-22-0

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91548-22-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91548-22-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,4 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91548-22:
(7*9)+(6*1)+(5*5)+(4*4)+(3*8)+(2*2)+(1*2)=140
140 % 10 = 0
So 91548-22-0 is a valid CAS Registry Number.

91548-22-0Relevant articles and documents

Synthesis of enantiopure 1,2-diamine attached to cross-linked polystyrene and its application to an insoluble catalyst for asymmetric hydrogenation

Itsuno, Shinichi,Tsuji, Atsushi,Takahashi, Miyuki

, p. 3825 - 3828 (2003)

A novel enantiopure 1,2-diamine (5) having two phenolic hydroxy groups was attached into chloromethylated polystyrene through benzyl ether linkage, which was used as a chiral ligand of the catalyst in asymmetric hydrogenation of acetophenone.

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