199434-83-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199434-83-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,4,3 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199434-83:
(8*1)+(7*9)+(6*9)+(5*4)+(4*3)+(3*4)+(2*8)+(1*3)=188
188 % 10 = 8
So 199434-83-8 is a valid CAS Registry Number.
199434-83-8Relevant articles and documents
Benzoylhydrazones in catalytic hydrophosphorylation
Matveeva,Podrugina,Kolesnikova,Zefirov
experimental part, p. 411 - 417 (2011/02/17)
Reactions of benzoylhydrazones derived from heterocyclic and aromatic aldehydes and aliphatic, heterocyclic, and aliphatic-aromatic ketones with diethyl phosphite in the presence of [tetra(tert-butyl)phthalocyanine]aluminum chloride afford α-benzoylhydraz