129196-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129196-72-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,1,9 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129196-72:
(8*1)+(7*2)+(6*9)+(5*1)+(4*9)+(3*6)+(2*7)+(1*2)=151
151 % 10 = 1
So 129196-72-1 is a valid CAS Registry Number.
129196-72-1Relevant articles and documents
Regiochemistry and stereochemistry of the coupling of phenylthiopentadienyl metals with C-electrophiles
Florio,Ronzini,Sgarra
, p. 2327 - 2330 (2007/10/02)
Phenylthiopentadienyl anions 2 couple with MeI and cyclopentanone either regioselectively and stereoselectively to give 3a and 4a respectively. With aldehydes the regiochemistry and stereochemistry is affected by the counterion of 2, furnishing α-, γ- or
