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1189399-12-9

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1189399-12-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1189399-12-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,9,3,9 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1189399-12:
(9*1)+(8*1)+(7*8)+(6*9)+(5*3)+(4*9)+(3*9)+(2*1)+(1*2)=209
209 % 10 = 9
So 1189399-12-9 is a valid CAS Registry Number.

1189399-12-9Downstream Products

1189399-12-9Relevant articles and documents

A general procedure for the preparation of β-ketophosphonates

Maloney, Kevin M.,Chung, John Y. L.

supporting information; experimental part, p. 7574 - 7576 (2009/12/28)

(Chemical Equation Presented) A mild, high-yielding procedure for the preparation of β-ketophosphonates is described. The condensation is general with respect to the ester and phosphonate, and the products are obtained in high yields within minutes at 0°C. The reaction procedure is operationally simple and amenable to large-scale preparations. 2009 American Chemical Society.

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