Cas 99706-39-5,ethyl bis(2-hydroxyphenyl)phosphinate

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Check Digit Verification of cas no

The CAS Registry Mumber 99706-39-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,0 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99706-39:
(7*9)+(6*9)+(5*7)+(4*0)+(3*6)+(2*3)+(1*9)=185
185 % 10 = 5
So 99706-39-5 is a valid CAS Registry Number.

99706-39-5Upstream product

841-46-3 ethyl diphenyl phosphate

99706-39-5Downstream Products

99706-43-1 bis(2-hydroxyphenyl)phosphinic acid

99706-39-5Relevant articles and documents

1,3-CARBANIONISCHE UMLAGERUNGEN SYNTHESE VON BIS(o-HYDROXYARYL)-PHOSPHORVERBINDUNGEN

Heinicke, J.,Kadyrov, R.,Kellner, K.,Nietzschmann, E.,Tzschach, A.

, p. 209 - 216 (2007/10/02)

Phosphonic acid bis(o-haloarylesters) as well as the corresponding phosphoric acid derivatives are reacted with sodium giving bis(o-hydroxyaryl)phosphinoxides and phosphonic acid esters or amides, resp.The primery metallation products undergo rapid 1,3-ca

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99706-39-5