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129461-29-6

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129461-29-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129461-29-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,4,6 and 1 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129461-29:
(8*1)+(7*2)+(6*9)+(5*4)+(4*6)+(3*1)+(2*2)+(1*9)=136
136 % 10 = 6
So 129461-29-6 is a valid CAS Registry Number.

129461-29-6Downstream Products

129461-29-6Relevant articles and documents

Vilsmeier-Haack reaction with succinamidals. A convenient synthesis of 5-chloropyrrole-2-carboxaldehydes and 5-chloropyrrole-2,4-dicarboxaldehydes

Guzman, Angel,Romero, Moises,Muchowski, Joseph M.

, p. 791 - 794 (2007/10/02)

It is shown that the reaction of N-alkylsuccinamidals (2) with Vilsmeier-Haack reagent derived from DMF and phosphorus oxychloride can be controlled to preferentially produce either 5-chloropyrrole-2-carboxaldehydes (8) or 5-chloropyrrole-2,4-dicarboxalde

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