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96823-20-0

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96823-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 96823-20-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,6,8,2 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 96823-20:
(7*9)+(6*6)+(5*8)+(4*2)+(3*3)+(2*2)+(1*0)=160
160 % 10 = 0
So 96823-20-0 is a valid CAS Registry Number.

96823-20-0Downstream Products

96823-20-0Relevant articles and documents

Synthesis of fused pyrimidinones by reaction of aminoarene-carboxamide with esters; Preparation of pyrrolo[2,3-d]-, thieno[2,3-d]-, isoxazolo[5,4-d]- and 1,2,3-triazolo[4,5-d]pyrimidinones, and quinazolones

Miyashita, Akira,Fujimoto, Katsuhiro,Okada, Tomomi,Higashino, Takeo

, p. 691 - 699 (2007/10/03)

Several fused pyrimidinones were synthesized by reaction of aminoarenecarboxamide with esters in moderate to good yields. In the presence of sodium ethoxide, treatments of 2-amino-l-phenyl-3-pyrrolecarboxamide(4, 5, and 6), 2-amino-3-thiophenecarboxamide (14), 3-amino-4-isoxazolecarboxamide (10 and 11), 4-amino-1,2,3-triazole-5-carboxamide (16), and o-aminobenzamide (18) with esters (3) such as ethyl formate (3a) and ethyl acetate (3b) led to the corresponding pyrrolo[2,3-d]- (7, 8, and 9), and thieno[2,3-d]pyrimidin-4(3H)-ones (15), isoxazolo[5,4-d]pyrimidin-4(5H)-ones (12 and 13), 1,2,3-triazolo[4,5-d]pyrimidin-7(6H)-ones (17), and 4(3H)-quinazolones (19), respectively.

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