134501-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134501-93-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,5,0 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134501-93:
(8*1)+(7*3)+(6*4)+(5*5)+(4*0)+(3*1)+(2*9)+(1*3)=102
102 % 10 = 2
So 134501-93-2 is a valid CAS Registry Number.
134501-93-2Relevant academic research and scientific papers
The synthesis of nor- and bisnorlupanes
Wahhab, Amal,Ottosen, Margaret,Bachelor, Frank W.
, p. 570 - 577 (2007/10/02)
In course of our studies on geochemical biomarkers we required a series of lupane standards.We report here an efficient synthesis of lupane (1) in three steps from betulin (3) in an overall yield of 47.2 percent. 17β(H)-28-Norlupane (2) was obtained in 90
