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127813-40-5

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127813-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127813-40-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,8,1 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 127813-40:
(8*1)+(7*2)+(6*7)+(5*8)+(4*1)+(3*3)+(2*4)+(1*0)=125
125 % 10 = 5
So 127813-40-5 is a valid CAS Registry Number.

127813-40-5Downstream Products

127813-40-5Relevant articles and documents

INTRAMOLECULAR DIELS-ALDER REACTIONS OF PYRIMIDINES: SYNTHESIS OF TRICYCLIC ANNELATED PYRIDINES.

Stolle, W. A. W.,Marcelis, A. T. M.,Koetsier, A.,Plas, H. C. van der

, p. 6511 - 6518 (2007/10/02)

2-(2-Trimethylsilylethynylphenyl-X)-pyrimidines (2, X=O, S, NAc, CH2, CO) easily undergo intramolecular Diels-Alder reaction with inverse electron demand, to give tricyclic annelated pyridines in excellent yields.The synthesis of 2 and the cycloaddition r

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