254099-07-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254099-07-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,0,9 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 254099-07:
(8*2)+(7*5)+(6*4)+(5*0)+(4*9)+(3*9)+(2*0)+(1*7)=145
145 % 10 = 5
So 254099-07-5 is a valid CAS Registry Number.
254099-07-5Relevant articles and documents
Synthesis of (25R)-26-hydroxy-15-ketosterols
Kim, Hong-Seok,Kim, Dong-Il
, p. 844 - 848 (1999)
(25R)-3β,26-Dihydroxy-5α-cholest-8(14)-en-15-one (1) and (25R)-3β,26- dihydroxy-5α,14β-cholest-16-en-15-one (2) were synthesized from (25R)- 3β,26-dibenzoyloxy-5α,14α-cholest-16-ene (4). Oxidation of 4 with CrO3- 3,5-dimethylpyrazole at -20°C g
