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75581-80-5

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75581-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75581-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,5,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 75581-80:
(7*7)+(6*5)+(5*5)+(4*8)+(3*1)+(2*8)+(1*0)=155
155 % 10 = 5
So 75581-80-5 is a valid CAS Registry Number.

75581-80-5Downstream Products

75581-80-5Relevant articles and documents

DIENE SYNTHESIS WITH 2-PYRONES AND 2-PYRIDONES. XXXIII. STEREOCHEMISTRY OF THE DOUBLE DIENE SYNTHESIS OF 2-PYRONES WITH N-PHENYLMALEIMIDE

Nesterova, T. L.,Shusherina, N. P.,Shulishov, E. V.

, p. 387 - 390 (2007/10/02)

The stereeochemistry of the successive addition of two molecules of N-phenylmaleimide to 2-pyrones was investigated for the first time.Irrespective of the structure, the reaction of the pyrones with N-phenylmaleimide takes place stereoselectively with the

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