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87970-31-8

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87970-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87970-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,7 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87970-31:
(7*8)+(6*7)+(5*9)+(4*7)+(3*0)+(2*3)+(1*1)=178
178 % 10 = 8
So 87970-31-8 is a valid CAS Registry Number.

87970-31-8Downstream Products

87970-31-8Relevant articles and documents

SOLID-STATE FORMATION OF QUINHYDRONES FROM THEIR COMPONENTS. USE OF SOLID-SOLID REACTIONS TO PREPARE COMPOUNDS NOT ACCESSIBLE FROM SOLUTION.

Patil,Curtin,I. C. Paul

, p. 348 - 353 (2007/10/02)

Selective molecular mobility provided by working with crystalline solids has been employed to prepare unsymmetrically substituted quinhydrones too unstable with respect to self-oxidation-reduction to be prepared by crystallization from solution. Reaction is carried out by grinding the solid components together with a mortar and pestle. Examination of the products with differential scanning calorimetry, X-ray powder photography, and Fourier transform infrared spectroscopy shows that the complexation reaction goes to completion under conditions in which no detectible redox reaction has occurred. The products are shown by X-ray powder photography to be formed in a microcrystalline state.

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