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137569-28-9

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137569-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137569-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,6 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137569-28:
(8*1)+(7*3)+(6*7)+(5*5)+(4*6)+(3*9)+(2*2)+(1*8)=159
159 % 10 = 9
So 137569-28-9 is a valid CAS Registry Number.

137569-28-9Downstream Products

137569-28-9Relevant articles and documents

threo-3-Alkyl- and -Arylglutamic Acid Derivatives by Michael Additions of Boc-BMI Li-Enolates to 2,6-Di-t-butyl-4-methoxyphenyl Alkenoates On the Diastereoselectivity of the Coupling of Trigonal Centers Involving Heterocyclic Li-Enolates

Suzuki, Keisuke,Seebach, Dieter

, p. 51 - 62 (2007/10/02)

The conjugated esters 5, 6, 8, 9 mentioned in the title are prepared from the corresponding aryl acetate 4 and aldehydes by aldol condensation (direct enoylation of the hindered phenol with the corresponding unsaturated acid chlorides gave only poor yield

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