78344-79-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78344-79-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,4 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78344-79:
(7*7)+(6*8)+(5*3)+(4*4)+(3*4)+(2*7)+(1*9)=163
163 % 10 = 3
So 78344-79-3 is a valid CAS Registry Number.
78344-79-3Relevant articles and documents
Syntheses of some β-substituted alkyne porphyrins related to protoporphyrin-IX
Jiang, Xuqin,Smith, Kevin M.
, p. 1601 - 1606 (2007/10/03)
β-Acetylporphyrins (e.g. 20, 35, 39) have been treated with Vilsmeier complex (POCl3-DMF) to afford β-(1-chloro-2-formylvinyl)porphyrins (23, 36, 41); with an excess of KOH in methanol these compounds were transformed into the corresponding alk
