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109773-16-2

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109773-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109773-16-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,7,7 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 109773-16:
(8*1)+(7*0)+(6*9)+(5*7)+(4*7)+(3*3)+(2*1)+(1*6)=142
142 % 10 = 2
So 109773-16-2 is a valid CAS Registry Number.

109773-16-2Downstream Products

109773-16-2Relevant articles and documents

Improved One-Step Procedure for the Preparation of 1-Substituted and 1,3-Disubstituted Uracils and 2-Thiouracils

Winckelmann, Ib,Larsen, Erik H.

, p. 1041 - 1044 (1986)

A convenient one-pot procedure for the synthesis of 1-substituted and 1,3-disubstituted uracils and 2-thiouracils consists of acylation of ureas or thioureas with methyl 3,3-dimethoxypropanoate in the presence of a strong base, and acidic work-up.The yields range from 36 to 99percent.In all cases, only one regioisomer is isolated.

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