421546-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 421546-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,1,5,4 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 421546-91:
(8*4)+(7*2)+(6*1)+(5*5)+(4*4)+(3*6)+(2*9)+(1*1)=130
130 % 10 = 0
So 421546-91-0 is a valid CAS Registry Number.
421546-91-0Relevant articles and documents
Ferrocenium salts mediate para-tert-butylcalixarene synthesis
Bew, Sean P.,Cheesman, Myles R.,Sharma, Sunil V.
, p. 5731 - 5733 (2008)
Ferrocenium salts mediate high yielding one-pot and convergent syntheses of para-tert-butylcalixarenes in mild non-Lewis or Bronsted acidic reaction conditions; EPR indicates complex formation between the s-trioxane and the ferrocenium salt. The Royal Soc