128321-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128321-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,2 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128321-99:
(8*1)+(7*2)+(6*8)+(5*3)+(4*2)+(3*1)+(2*9)+(1*9)=123
123 % 10 = 3
So 128321-99-3 is a valid CAS Registry Number.
128321-99-3Relevant academic research and scientific papers
Studies on aromatic sesquiterpenes. XII. Synthesis of (±)-cis-5-Hydroxycalamenene
Tanaka,Adachi
, p. 272 - 274 (2007/10/02)
Starting from o-cresol, (±)-cis-5-hydroxycalamenene was synthesized through 4-isopropyl-5-methoxy-6-methyl-1-tetralone as a key intermediate and identified with the natural compound spectroscopically.
