138307-79-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138307-79-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,0 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138307-79:
(8*1)+(7*3)+(6*8)+(5*3)+(4*0)+(3*7)+(2*7)+(1*9)=136
136 % 10 = 6
So 138307-79-6 is a valid CAS Registry Number.
138307-79-6Relevant academic research and scientific papers
Chemical conversion of vitamin D3 to its 1,25-dihydroxy metabolite
Kiegiel,Wovkulich,Uskokovic
, p. 6057 - 6060 (2007/10/02)
Vitamin D3 (6) has been converted to the 1,25-dihydroxy vitamin D3 metabolite (1) and the 1α-fluoro derivative 2 via a new process. The strategy involved the cleavage of the ring A portion from the CD portion in vitamin D3
