205940-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205940-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,9,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 205940-31:
(8*2)+(7*0)+(6*5)+(5*9)+(4*4)+(3*0)+(2*3)+(1*1)=114
114 % 10 = 4
So 205940-31-4 is a valid CAS Registry Number.
205940-31-4Relevant articles and documents
A synthetic approach towards the identification of periplaneta sex pheromones
Iwamoto, Hajime,Harada, Takeo,Takahashi, Takashi,Takahashi, Shozo
, p. 139 - 142 (2007/10/03)
Syntheses of the proposed structure of periplanone J (3) and its diastereomer (4), and the discussion on the true structure of PJ based on spectral analysis of 3,4 and the natural PJ are described.
