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5223-98-3

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5223-98-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5223-98-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,2 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5223-98:
(6*5)+(5*2)+(4*2)+(3*3)+(2*9)+(1*8)=83
83 % 10 = 3
So 5223-98-3 is a valid CAS Registry Number.

5223-98-3Relevant articles and documents

A simple procedure for selective reduction of α,β-unsaturated carbonyl compounds using Al-NiCl2 system

Hazarika,Barua

, p. 6567 - 6570 (1989)

A combination of aluminium and nickel chloride in THF has been shown to effect the selective reduction of the olefinic double bond of the α-enone system. Isolated double bonds and aliphatic carbonyls remain unaffected under these conditions. However, aromatic aldehydes and ketones are converted to the corresponding hydroxy compounds by this system in good yields.

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