128219-60-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128219-60-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,1 and 9 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128219-60:
(8*1)+(7*2)+(6*8)+(5*2)+(4*1)+(3*9)+(2*6)+(1*0)=123
123 % 10 = 3
So 128219-60-3 is a valid CAS Registry Number.
128219-60-3Relevant academic research and scientific papers
An improved synthesis of (24R)-24,25-dihydroxyprovitamin D3
Schrotter,Schonecker,Hauschild,Droescher,Schick
, p. 193 - 195 (2007/10/02)
(24R)-24,25-Dihydroxyprovitamin D3 was prepared in 33% overall yield by a six-step procedure starting from the Diels-Alder adduct of ergosteryl benzoate and 1,4-dihydrophthalazine-1,4-dione. The yield thus obtained is more than four times as hi
