52591-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52591-03-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,5,9 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 52591-03:
(7*5)+(6*2)+(5*5)+(4*9)+(3*1)+(2*0)+(1*3)=114
114 % 10 = 4
So 52591-03-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H36O4/c1-17(2)8-6-9-18(3)13-7-10-19(4,16(23)12-21)24-20(13,5)15(22)11-14(17)18/h13-16,21-23H,6-12H2,1-5H3/t13-,14+,15+,16-,18-,19-,20+/m1/s1
52591-03-4Relevant articles and documents
Synthesis of (-)-Borjatriol
Abad, Antonio,Agullo, Consuelo,Arno, Manuel,Cunat, Ana C.,Zaragoza, Ramon, J.
, p. 50 - 54 (1992)
The enantioselective synthesis of (-)-borjatriol ((14R)-8,13-epoxylabdane-7β,14,15-triol (1)) from (+)-podocarp-8(14)-en-13-one (2) is described using as a key step the regioselective intramolecular epoxide ring opening of 13.