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1219498-04-0

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1219498-04-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219498-04-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,4,9 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1219498-04:
(9*1)+(8*2)+(7*1)+(6*9)+(5*4)+(4*9)+(3*8)+(2*0)+(1*4)=170
170 % 10 = 0
So 1219498-04-0 is a valid CAS Registry Number.

1219498-04-0Downstream Products

1219498-04-0Relevant articles and documents

Synthesis of optically active γ-valerolactone and γ-nonanolactone via optical resolution using chiral amine derived from amino acid

Yumoto, Kenichi,Hasegawa, Morifumi,Toshima, Hiroaki

experimental part, p. 421 - 431 (2010/09/05)

Optically active γ-valerolactone and γ-nonanolactone have been synthesized via optical resolution using a newly developed chiral amine derived from L-phenylalanine. Both racemic γ-lactones were transformed to corresponding diastereomeric amides by amidation with the optical resolution agent. Fractional crystallization of diastereomeric amides, recrystallization of each diastereomer, and subsequent hydrolysis gave optically active γ-valerolactone and γ-nonanolactone with sufficient enantiomeric excess and isolated yield. The optical resolution agent was recovered after hydrolysis.

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