206130-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206130-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,1,3 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 206130-71:
(8*2)+(7*0)+(6*6)+(5*1)+(4*3)+(3*0)+(2*7)+(1*1)=84
84 % 10 = 4
So 206130-71-4 is a valid CAS Registry Number.
206130-71-4Relevant articles and documents
Synthesis of naturally occurring (Z)-3-benzylidenephthalide and (+/-) 3-benzylphthalides
Mali, Raghao S.,Massey, Archna P.,Talele, M. I.
, p. 472 - 490 (2007/10/03)
A convenient method, involving generation of phthalide anion, is described for the synthesis of naturally occurring (Z) 3-benzylidenephthalide (5) and (+/-) 3-benzyl phthalides (6c, 10a-c), starting from phthalides (7a-b).
