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135999-86-9

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135999-86-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135999-86-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,9 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 135999-86:
(8*1)+(7*3)+(6*5)+(5*9)+(4*9)+(3*9)+(2*8)+(1*6)=189
189 % 10 = 9
So 135999-86-9 is a valid CAS Registry Number.

135999-86-9Relevant articles and documents

Synthesis of two cyclic analogs of glutamic acid: cis- and trans-pyrrolidine-2,4-dicarboxylic acids

Trigalo, Franois,Molliex, Christophe,Champion, Brigitte,Azerad, Robert

, p. 3049 - 3050 (1991)

The tosyl ester 2 of tetraethyl 1-acetamido-4-hydroxybutane- 1,1,3,3-tetracarboxylate gave 4-methylene glutammic acid in 90% yield by refluxing with concentrated HC1. Treatment of 2 with NaOEt, then with refluxing concentrated HC1 gave a 54% yield of cis

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