The CAS Registry Mumber 130575-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,5,7 and 5 respectively; the second part has 2 digits, 4 and 0 respectively. Calculate Digit Verification of CAS Registry Number 130575-40: (8*1)+(7*3)+(6*0)+(5*5)+(4*7)+(3*5)+(2*4)+(1*0)=105 105 % 10 = 5 So 130575-40-5 is a valid CAS Registry Number.
Synthetic studies on quassinoids: Total synthesis of (±)-chaparrinone
Gross,Grieco,Collins
, p. 9436 - 9437 (2007/10/02)
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Get Best Price for130575-40-5(2S,3S,3aR,5R,6aS,7aR,8S,10R,11R,11aR,11bS,11cR)-11c-(tert-Butyl-diphenyl-silanyloxymethyl)-10-hydroxy-5,11-dimethoxy-2-methoxymethoxy-3,8,11a-trimethyl-tetradecahydro-6-oxa-benzo[de]anthracen-1-one