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164589-95-1

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164589-95-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 164589-95-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,5,8 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 164589-95:
(8*1)+(7*6)+(6*4)+(5*5)+(4*8)+(3*9)+(2*9)+(1*5)=181
181 % 10 = 1
So 164589-95-1 is a valid CAS Registry Number.

164589-95-1Relevant articles and documents

α-Pyrones. Part V. Structure Effects on the Intramolecular Cyclization of Functionalized 6-Pyronylacetamides: Synthesis of New 2,5,7-Trioxo-pyranopyridines

Clerici, Francesca,Gelmi, Maria L.,Galbiati, Barbara,Mottadelli, Sabrina,Penso, Michele,Pocar, Donato

, p. 3279 - 3288 (1995)

Reaction of arylisocyanates 2 with methyl 2-oxo-2H-pyran-6-acetate 1 and with ylide 4 gave two classes of pyronylacetamides 3 and 5, respectively.Phosphoranes 5 were reduced to the corresponding acetamides 6 with zinc and acetic acid.Compounds 6 were alky

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