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153708-38-4

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153708-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153708-38-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,7,0 and 8 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 153708-38:
(8*1)+(7*5)+(6*3)+(5*7)+(4*0)+(3*8)+(2*3)+(1*8)=134
134 % 10 = 4
So 153708-38-4 is a valid CAS Registry Number.

153708-38-4Downstream Products

153708-38-4Relevant articles and documents

Self-reproduction of chirality. Asymmetric synthesis of β-alkyl-β-amino acids from enantiomerically pure dihydropyrimidinones

Chu, Kent S.,Konopelski, Joseph P.

, p. 9183 - 9190 (2007/10/02)

Enantiomerically pure heterocycle 2 is deprotonated at C6 with tert-butyllithium at -78°C. The resulting carbanion reacts with alkyl halides and aldehydes to give the corresponding alkylated products. Reduction of the double bond followed by hydrolysis affords enantiomerically pure β-alkyl-β-amino acids.

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