136209-54-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136209-54-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,0 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136209-54:
(8*1)+(7*3)+(6*6)+(5*2)+(4*0)+(3*9)+(2*5)+(1*4)=116
116 % 10 = 6
So 136209-54-6 is a valid CAS Registry Number.
136209-54-6Relevant articles and documents
Regioselective Synthesis of Δ6-, Δ7-, and Δ8-14α-Cyanosterol Derivatives: Versatile Precursors to 14α-Demethylase Inhibitors
Gallagher, Timothy F.,Adams, Jerry L.
, p. 3347 - 3353 (2007/10/02)
The efficient preparation of 3β-(benzoyloxy)-4,4-dimethyl-5α-cholest-8(14)-en-7-one (4a) and 3β-(benzyloxy)-5α-ergosta-8(14),22-dien-7-one (4b) and their conversion to Δ6-, Δ7- or Δ8-14α-functionalized sterols is reported.
