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128333-50-6

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128333-50-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128333-50-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,3 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128333-50:
(8*1)+(7*2)+(6*8)+(5*3)+(4*3)+(3*3)+(2*5)+(1*0)=116
116 % 10 = 6
So 128333-50-6 is a valid CAS Registry Number.

128333-50-6Downstream Products

128333-50-6Relevant articles and documents

Studies on Organophosphorus Compounds XL. A One-Pot Procedure for the Mono-O-Alkylation of Phosphonic Acid: A Facile Synthesis of Alkyl Hydrogen p-Substituted Phenylphosphonates

Yuan, Chengye,Feng, Hanzhen

, p. 140 - 141 (2007/10/02)

A one-pot procedure is described for the synthesis of hexyl hydrogen p-substituted phenylphosphonates 4 in moderate yield based on the mono-O-alylation of bis(tetramethylammonium) salts of dibasic phosphonic acids 3.

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