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97801-91-7

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97801-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97801-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,8,0 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 97801-91:
(7*9)+(6*7)+(5*8)+(4*0)+(3*1)+(2*9)+(1*1)=167
167 % 10 = 7
So 97801-91-7 is a valid CAS Registry Number.

97801-91-7Downstream Products

97801-91-7Relevant articles and documents

PHOTOLYSIS OF 5-DIAZO-2,2-DIMETHYL-4,6-DIOXO-1,3-DIOXANE (DIAZOISOPROPYLIDENEMALONIC ACID)

Nikolaev, V. A.,Khimich, N. N.,Korobitsyna, I. K.

, p. 264 - 268 (1985)

The principal pathway in the photochemical (λ > 210 nm) transformation of 5-diazo-2,2-dimethyl-4,6-dioxo-1,3-dioxane in an aqueous medium (or in methanol) is splitting out of nitrogen and the Wolff rearrangement to give the stable 2,2-dimethyl-5-oxo-1,3-dioxolane-4-carboxylic acid (or its methyl ester), which undergoes decarboxylation only at temperature above 150 deg C, whereas it undergoes hydrolysis to a hydroxymalonic acid in the presence of trifluoroacetic acid.

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