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170702-71-3

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170702-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 170702-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,7,0 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 170702-71:
(8*1)+(7*7)+(6*0)+(5*7)+(4*0)+(3*2)+(2*7)+(1*1)=113
113 % 10 = 3
So 170702-71-3 is a valid CAS Registry Number.

170702-71-3Downstream Products

170702-71-3Relevant articles and documents

N-Alkenyl-3,5-Pyrazolidinediones from Ketone Hydrazones, PCl3 and Malonic acid.

Baccolini, Graziano,Gianelli, Michele

, p. 9487 - 9492 (1995)

The title compounds 3, a new series of 3,5-pyrazolidinediones, have been synthesized at room temperature by a one-pot reaction between ketone hydrazone 1, PCl3 and malonic acid.Changing the order of addition of reagents, or their simultaneous addition, gave identical results.In all the procedures the yields are good and in the cases a,b,c and g the E-alkenyl isomer was obtained as the exclusive isomer.A dual mechanism which depends on the order of addition of the reactants is hypothesised.

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