136203-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136203-71-9 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 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 136203-71:
(8*1)+(7*3)+(6*6)+(5*2)+(4*0)+(3*3)+(2*7)+(1*1)=99
99 % 10 = 9
So 136203-71-9 is a valid CAS Registry Number.
136203-71-9Relevant academic research and scientific papers
Efficient preparation of 32-oxygenated lanosterol derivatives
Takano,Morisaki
, p. 1647 - 1648 (2007/10/02)
An efficient synthesis of 32-hydroxy- and 32-oxo-lanost-8-en-3β-ol (2 and 4) from the 8-ene-15-ketone 7 was described.
