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129287-41-8

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129287-41-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129287-41-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,8 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129287-41:
(8*1)+(7*2)+(6*9)+(5*2)+(4*8)+(3*7)+(2*4)+(1*1)=148
148 % 10 = 8
So 129287-41-8 is a valid CAS Registry Number.

129287-41-8Downstream Products

129287-41-8Relevant articles and documents

(E,R,R)-5-Alkylidene-2-tert-butyl-6-methyl-1,3-dioxan-4-ones: Preparation from (R)-3-Hydroxybutbutyric Acid, Cuprate Additions and Hydrolyses to 3-Hydroxycarboxylic Acids with Chiral Secondary Alkyl Substituents in the 2-Position

Amberg, Willi,Seebach, Dieter

, p. 2413 - 2428 (2007/10/02)

Li enolates of (R,R)-2-tert-Butyl-6-methyl-1,3-dioxan-4-one add to aliphatic or aromatic aldehydes with relative topicity Re,Re (2:1 to 10:1, 9 examples).The title compounds are obtained from these aldol adducts by dehydration through mesylates (5 example

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