938436-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 938436-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,8,4,3 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 938436-45:
(8*9)+(7*3)+(6*8)+(5*4)+(4*3)+(3*6)+(2*4)+(1*5)=204
204 % 10 = 4
So 938436-45-4 is a valid CAS Registry Number.
938436-45-4Relevant articles and documents
Enantioselective synthesis of preclavulone A and its methyl ester
Porta, Alessio,Re, Savino,Zanoni, Giuseppe,Vidari, Giovanni
, p. 3989 - 3994 (2007)
A highly enantioselective synthesis of the (8S,12S)-enantiomer of preclavulone A and its methyl ester is described featuring the Julia protocol for installing the (Z)-double bond in the lower chain. This procedure is suitable for the preparation of labele