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91232-28-9

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91232-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91232-28-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,3 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91232-28:
(7*9)+(6*1)+(5*2)+(4*3)+(3*2)+(2*2)+(1*8)=109
109 % 10 = 9
So 91232-28-9 is a valid CAS Registry Number.

91232-28-9Downstream Products

91232-28-9Relevant articles and documents

Pyrylium Compounds. XXI. - Structure and Tautomerism of Pseudobases of Unsymmetrically Substituted 2,4,6-Triarylpyrylium Salts

Fischer, Gerhard W.,Herrmann, Michael

, p. 287 - 302 (2007/10/02)

Hydrolytic ring opening of unsymmetrically substituted 2,4,6-triarylpyrylium salts 11 results in a mixture of two tautomeric pseudobases, the penten-1,5-diones 13 and 14.In crystalline state as a rule one of these tautomers markedly predominates, whereas

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