139006-41-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139006-41-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,0,0 and 6 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139006-41:
(8*1)+(7*3)+(6*9)+(5*0)+(4*0)+(3*6)+(2*4)+(1*1)=110
110 % 10 = 0
So 139006-41-0 is a valid CAS Registry Number.
139006-41-0Relevant articles and documents
Hypervalent iodine oxidation of 2'-hydroxychalcones: Synthesis of cis-3-hydroxyflavanones
Prakash, Om,Pahuja, Saroj,Sawhney, Shanti N
, p. 1023 - 1027 (2007/10/02)
Oxidation of 2'-hydroxychalcones (1a-h) using C6H5I(OAC)2-KOH/MeOH leads to the formation of cis-3-hydroxyflavanone dimethylacetals (2a-h).Mild acid hydrolysis (50percent AcOH) of 2a-h affords cis-3-hydroxyflavanones (3a-h) in good yields.Oxidation of cha
