1425631-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1425631-33-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,5,6,3 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1425631-33:
(9*1)+(8*4)+(7*2)+(6*5)+(5*6)+(4*3)+(3*1)+(2*3)+(1*3)=139
139 % 10 = 9
So 1425631-33-9 is a valid CAS Registry Number.
1425631-33-9Relevant academic research and scientific papers
Concise total synthesis of spirocurcasone
Abe, Hideki,Sato, Akimi,Kobayashi, Toyoharu,Ito, Hisanaka
, p. 1298 - 1301 (2013/05/09)
A concise total synthesis of spirocurcasone was accomplished. Key features of the synthesis involved a vinylogous Mukaiyama aldol reaction, a Carroll rearrangement of β-keto allyl ester derivative, an intramolecular aldol condensation, and a spiro ring fo
