The CAS Registry Mumber 143842-92-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,4 and 2 respectively; the second part has 2 digits, 9 and 2 respectively. Calculate Digit Verification of CAS Registry Number 143842-92: (8*1)+(7*4)+(6*3)+(5*8)+(4*4)+(3*2)+(2*9)+(1*2)=136 136 % 10 = 6 So 143842-92-6 is a valid CAS Registry Number.
Remote diastereoselection in the asymmetric synthesis of pravastatin
Daniewski,Wovkulich,Uskokovic
, p. 7133 - 7139 (2007/10/02)
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Get Best Price for143842-92-6(S)-2-Methyl-butyric acid (1aS,3S,4S,4aS,5S,7S,8aR)-7-(tert-butyl-diphenyl-silanyloxy)-4-{2-[(2R,4R,6S)-4-(tert-butyl-diphenyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-yl]-ethyl}-3-methyl-octahydro-1-oxa-cyclopropa[d]naphthalen-5-yl ester