81780-75-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81780-75-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,8 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81780-75:
(7*8)+(6*1)+(5*7)+(4*8)+(3*0)+(2*7)+(1*5)=148
148 % 10 = 8
So 81780-75-8 is a valid CAS Registry Number.
81780-75-8Relevant academic research and scientific papers
SYNTHESIS OF 3-OXYGENATED 13-NORHELIANGOLIDES
Kuroda, Chiaki,Hirota, Hiroshi,Takahashi, Takeyoshi
, p. 249 - 252 (2007/10/02)
Optically active - and -3-methoxymethoxy-13-nor-1(10),4-germacradieno-12,6-lactones, key synthetic intermediates for 3-oxygenated heliangolides, were synthesized from (-)-carvone.
