53821-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53821-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,8,2 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 53821-20:
(7*5)+(6*3)+(5*8)+(4*2)+(3*1)+(2*2)+(1*0)=108
108 % 10 = 8
So 53821-20-8 is a valid CAS Registry Number.
InChI:InChI=1/C13H25IO2/c1-2-16-13(15)11-9-7-5-3-4-6-8-10-12-14/h2-12H2,1H3
53821-20-8Relevant articles and documents
Synthesis of 13-oxo-(Z)-9-octadecenoic acid and 15-oxo-(Z)-11-icosenoic acid, arrestants of Oryzaephilus surinamensis L.
Nakajima,Okamura,Takeda,Sugawa,Tateishi,Iwasa,Baba
, p. 551 - 552 (2007/10/03)
Two arrestants of the sawtoothed grain beetle (Oryzaephilus surinamensis L.), 13-oxo-(Z)-9-octadecenoic acid and 15-oxo-(Z)-11-icosenoic acid, were synthesized for the first time by utilizing a Z-selective Wittig reaction.