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83651-52-9

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83651-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83651-52-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,5 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83651-52:
(7*8)+(6*3)+(5*6)+(4*5)+(3*1)+(2*5)+(1*2)=139
139 % 10 = 9
So 83651-52-9 is a valid CAS Registry Number.

83651-52-9Downstream Products

83651-52-9Relevant articles and documents

1,4- and 1,5-Stereoselection by Sequential Aldol Addition to α,β-Unsaturated Aldehydes Followed by Claisen Rearrangement. Application to Total Synthesis of the Vitamin E Side Chain and the Archaebacterial C40 Diol

Heathcock, Clayton H.,Finkelstein, Bruce L.,Jarvi, Esa T.,Radel, Peggy A.,Hadley, Cheri H.

, p. 1922 - 1942 (2007/10/02)

A synthetic strategy has been developed wherein the high 1,2-stereoselection obtainable from aldol reaction of an α,β-unsaturated aldehyde is parlayed by a subsequent Claisen rearrangement into 1,4- or 1,5-stereoselection.For example, diol monoethers 26 a

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