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129991-79-3

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129991-79-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129991-79-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,9 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129991-79:
(8*1)+(7*2)+(6*9)+(5*9)+(4*9)+(3*1)+(2*7)+(1*9)=183
183 % 10 = 3
So 129991-79-3 is a valid CAS Registry Number.

129991-79-3Downstream Products

129991-79-3Relevant articles and documents

Optical Resolution of Racemic Jasmonic Acid by Separation of Diastereomeric Mandelyl Esters

Kramell, Robert,Schneider, Gernot,Schmidt, Juergen,Sembdner, Guenther,Schreiber, Klaus

, p. 377 - 381 (2007/10/02)

The reaction of racemic jasmonic acid with either (R)-mandelic acid or its (S)-enantiomer resulted in a mixture of diastereomeric esters.Both the O--(R)-mandelic acids (2a, 2b) and the O--(S)-mandelic acids (3a, 3b) could be separated by silica gel chromatography.By hydrolysis of the pure diastereomers, resolved (+)-JA (1a) and (-)-JA (1b) were obtained.The structures and the purity of all compounds were confirmed by 1H NMR, MS, GC/MS, IR and ORD.

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