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72345-99-4

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72345-99-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72345-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,4 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 72345-99:
(7*7)+(6*2)+(5*3)+(4*4)+(3*5)+(2*9)+(1*9)=134
134 % 10 = 4
So 72345-99-4 is a valid CAS Registry Number.

72345-99-4Relevant articles and documents

Biocatalytical Transformations- VI. The 4-Acetamido-cyclopent-2-ene Carboxylate Route Revisited: Synthesis of (+)- and (-)-Aristeromycin

Csuk, Rene,Doerr, Petra

, p. 5789 - 5798 (2007/10/02)

Enantiomerically pure (+)-as well as (-)-aristeromycin can be synthesized starting from (+)- or (-)-butyl (or hexyl) 4-acetamido-cyclopent-2-ene carboxylate; these carboxylates are easily obtained from their corresponding racemates by hydrolysis with the lipase from Candida rugosa.

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