The CAS Registry Mumber 83040-05-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,0,4 and 0 respectively; the second part has 2 digits, 0 and 5 respectively. Calculate Digit Verification of CAS Registry Number 83040-05: (7*8)+(6*3)+(5*0)+(4*4)+(3*0)+(2*0)+(1*5)=95 95 % 10 = 5 So 83040-05-5 is a valid CAS Registry Number.
A Convenient Synthesis of p-Toluenesulphinic Esters
Boar, Robin B.,Patel, Arvind C.
, p. 584 - 586 (1982)
-
Post a RFQ
1
What can I do for you? Get Best Price
Get Best Price for83040-05-54-Methyl-benzenesulfinic acid (3S,5R,10S,13R,14R,17R)-17-((R)-1,5-dimethyl-hexyl)-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester