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53475-39-1

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53475-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53475-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,4,7 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 53475-39:
(7*5)+(6*3)+(5*4)+(4*7)+(3*5)+(2*3)+(1*9)=131
131 % 10 = 1
So 53475-39-1 is a valid CAS Registry Number.

53475-39-1Relevant articles and documents

Pyridine and pyrimidine ring syntheses from 4-(4-morpholino)-3-pentenone and from ethyl 3-(4-morpholino)-2-butenoate

Ratemi,Namdev,Gibson

, p. 1513 - 1516 (1993)

3-Substituted 2(1H)-pyridones are produced from reaction of 4-(4- morpholino)-3-pentenone 1 with each of the following carbon acids: cyanoacetamide, malononitrile, cyanothioacetamide, acetylacetamide, benzoyl- acetonitrile. Reaction of ethyl 3-(4-morpholino)-2-butenoate 2 with cyanoacetamide gives the corresponding hydroxypyridone. Pyrimidines are formed by reaction of 1 and of 2 with benzamidine and with S-benzylthiourea; in the last case, the eliminated morpholine displaces the benzylthio group to give the final product.

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