138606-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138606-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,0 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 138606-90:
(8*1)+(7*3)+(6*8)+(5*6)+(4*0)+(3*6)+(2*9)+(1*0)=143
143 % 10 = 3
So 138606-90-3 is a valid CAS Registry Number.
138606-90-3Relevant articles and documents
A NEW ROUTE TO DISUBSTITUTED CYCLOPENTENONES USING 2,3-DIBROMO-1-(PHENYLSULFONYL)-1-PROPENE AS A PIVOTAL REAGENT
Murphree, S. Shaun,Muller, Cheryl L.,Padwa, Albert
, p. 6145 - 6148 (2007/10/02)
2,3-Dibromo-1-(phenylsulfonyl)-1-propene acts as a dielectrophile towards 1,3-diketones and β-ketoesters providing an entry into a variety of 2,3-disubstituted cyclopentenones including cis-jasmone.
