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138079-33-1

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138079-33-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138079-33-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,0,7 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138079-33:
(8*1)+(7*3)+(6*8)+(5*0)+(4*7)+(3*9)+(2*3)+(1*3)=141
141 % 10 = 1
So 138079-33-1 is a valid CAS Registry Number.

138079-33-1Relevant articles and documents

PYROCATECHOL CYCLOPHOSPHATES IN REACTIONS WITH PROTON-CONTAINING NUCLEOPHILES

Nifant'ev, E. E.,Kukhareva, T. S.,Soldatova, I. A.,Matrosov, E. I.

, p. 1209 - 1212 (2007/10/02)

A general principle of the hydrolysis and alcoholysis of cyclophosphates of pyrocatechol and its derivatives is facile ring opening and anomalously facile cleavage of the P-O (P-N) bond to give, in all of the indicated cases, phosphoric acid 2-hydroxyphenyl phosphate.The latter is predetermined by the formation of a hydrogen bond with the participation of the phenolic hydroxy group of the 2-hydroxyphenyl radical.

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