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132400-73-8

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132400-73-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132400-73-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,4,0 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 132400-73:
(8*1)+(7*3)+(6*2)+(5*4)+(4*0)+(3*0)+(2*7)+(1*3)=78
78 % 10 = 8
So 132400-73-8 is a valid CAS Registry Number.

132400-73-8Upstream product

132400-73-8Relevant articles and documents

Heterocycles. XXV. Sodium Borohydride Reduction of Flavanonols

Li, Shaoshun,Onda, Masayuki,Kagawa, Hitoshi,Kawase, Hiromi,Iguchi, Mieko,Harigaya, Yoshihiro

, p. 2029 - 2035 (2007/10/02)

Solvent effects on the stereochemistry in the sodium borohydride reduction of (+/-)-flavanonols have been examined.The effects observed for the (+/-)-flavanonols with 5-OMe in 2-propanol, dioxane and methanol are explainable by the differences between the steric interactions inherent in the product-like transition states A and B.It has been also found that 5-OAc peculiarly affects the stereochemistry in the reduction to produce the (+/-)-catechin-type compounds in a one-pot process.The solvent and temperature effects are examined using a model analogous to the above.

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