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21942-04-1

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21942-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21942-04-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,4 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21942-04:
(7*2)+(6*1)+(5*9)+(4*4)+(3*2)+(2*0)+(1*4)=91
91 % 10 = 1
So 21942-04-1 is a valid CAS Registry Number.

21942-04-1Downstream Products

21942-04-1Relevant articles and documents

REACTION OF METHYL AND PHENYL PICRATES WITH NUCLEOPHILES

Artamkina, G. A.,Egorov, M. P.,Beletskaya, I. P.,Reutov, O.A.

, p. 25 - 31 (2007/10/02)

The reactions of 2,4,6-trinitroanisole with various nucleophiles Me3SnM, Me3SiLi, BuLi, Me4NBBu4, PhMgI, CN-, lithium (potassium) succinimide, F-, Cl-, Br-, SCN-, NO2-, NO3-, HCO3-, PhSO2-,AcO-, S2- were investigated.It was found that the final products are the picrate and the corresponding methyl derivatives.The formation of intermediate ? complexes was detected in a series of the reactions (Me3SnLi, potassium succinimide, Bu4B-, CN-, NO2-, PhSO2-).Possible mechanisms for the reaction are examined.Reactions of 2,4,6-tricyanoanisole and phenyl picrate with certain nucleophiles were also investigated.

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