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126940-54-3

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126940-54-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126940-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,4 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 126940-54:
(8*1)+(7*2)+(6*6)+(5*9)+(4*4)+(3*0)+(2*5)+(1*4)=133
133 % 10 = 3
So 126940-54-3 is a valid CAS Registry Number.

126940-54-3Downstream Products

126940-54-3Relevant articles and documents

4-ETHOXYMETHYLENE-2-PHENYL-5(4H)-OXAZOLONE AS A SYNTHON FOR THE SYNTHESIS OF SOME 2H-PYRAN-2-ONES

Kepe, Vladimir,Kocevar, Marijan,Petric, Andrej,Polanc, Slovenko,Vercek, Bojan

, p. 843 - 849 (2007/10/02)

Treatment of 4-ethoxymethylene-2-phenyl-5(4H)-oxazolone with activated methylene compounds under acidic or basic conditions leads to 2H-pyran-2-ones and fused pyran-2-ones.On the other hand, methyl (3-benzoylamino-5-methoxycarbonyl-2-oxo-2H-pyran-6-yl)acetate (4) has also been prepared by a one-pot synthesis from dimethyl 1,3-acetone dicarboxylate, diethoxymethyl acetate, hippuric acid and acetic anhydride.

Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. The Synthesis of Benzoylamino Substituted 7H-Pyranopyrimidine, 1H,6H-pyrano-pyrazole and 2H-1-benzopyran Derivatives

Stanovnik, Branko,Svete, Jurij,Tisler, Miha

, p. 1273 - 1276 (2007/10/02)

Methyl 2-benzoylamino-3-dimethylaminopropenoate (6) reacts with heterocyclic compounds containing an active methylene group or potential methylene group in the ring system, such as barbituric acid derivatives 1 and 2, pyrazolones 3 and 4, and resorcinol,

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