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74442-95-8

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74442-95-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74442-95-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,4 and 2 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74442-95:
(7*7)+(6*4)+(5*4)+(4*4)+(3*2)+(2*9)+(1*5)=138
138 % 10 = 8
So 74442-95-8 is a valid CAS Registry Number.

74442-95-8Downstream Products

74442-95-8Relevant articles and documents

Pyrimidine Derivatives and Related Compounds. 39. A Novel Cycloaromatization Reaction of 5-Formyl-1,3-dimethyluracil with Three-Carbon Nucleophiles. Synthesis of Substituted 4-Hydroxybenzoates

Hirota, Kosaku,Kitade, Yukio,Senda, Shigeo

, p. 3949 - 3953 (2007/10/02)

Treatment of 5-formyl-1,3-dimethyluracil (1) with α-substituted acetone derivatives (C-C-C type nucleophiles) such as acetylacetone, acetoacetamide, ethyl acetoacetate, and phenylacetone in basic media affords the corresponding 4-hydroxybenzoates (4).On the other hand, treatment of 1 with cyanoacetamide, a C-C-N type nucleophile, gives the nicotinate 8.A mechanism for this cycloaromatization was proposed on the basis of reaction of 5-formyl-1,3-dimethyluracil-d1 (6) with acetylacetone.

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