121783-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121783-53-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,8 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121783-53:
(8*1)+(7*2)+(6*1)+(5*7)+(4*8)+(3*3)+(2*5)+(1*3)=117
117 % 10 = 7
So 121783-53-7 is a valid CAS Registry Number.
121783-53-7Relevant academic research and scientific papers
STUDIES DIRECTED TOWARDS TAXANES. PREPARATION OF α-KETOLS BY OXIDATIVE RING-OPENING OF EPOXIDES.
Trost, Barry M.,Fray, Jonathan M.
, p. 2163 - 2166 (2007/10/02)
Protonic acid promoted ring-opening of epoxide by dimethyl sulphoxides at room temperature followed by treatment with diisopropylethylamine at -78 deg C, affords α-ketols in modest to good yields.
