138531-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138531-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,3 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138531-63:
(8*1)+(7*3)+(6*8)+(5*5)+(4*3)+(3*1)+(2*6)+(1*3)=132
132 % 10 = 2
So 138531-63-2 is a valid CAS Registry Number.
138531-63-2Relevant academic research and scientific papers
Synthesis of (+/-)-β-cuparenone via 3-oxa-β-cuparenone
Srikrishna, A,Nagaraju, S
, p. 1006 - 1009 (2007/10/02)
Grignard reaction followed by ozonolysis, or ozonolysis followed by Grignard reaction on the pentanoate 8, generates the diol 9.Cyclodehydration of 9 leads to the 3-oxacuparene (6), whereas PCC oxidation furnishes the 3-oxa-β-cuparenone (7).Methanesulfoni
