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70118-92-2

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70118-92-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70118-92-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,1,1 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 70118-92:
(7*7)+(6*0)+(5*1)+(4*1)+(3*8)+(2*9)+(1*2)=102
102 % 10 = 2
So 70118-92-2 is a valid CAS Registry Number.

70118-92-2Downstream Products

70118-92-2Relevant articles and documents

Electrophilic Substitution in Pyrroles. Part 5. Reaction of Dipyrrylmethanes with Arenediazonium Ions

Butler, Anthony R.,Shepherd, Peter T.

, p. 113 - 116 (1980)

Dipyrrylmethanes react with arenediazonium ions in acid solution to form azopyrroles and formaldehyde.At low pH cleavage of the methylene bridge is brought about by attack of hydrogen ions, but at higher pH arenediazonium ions assume this role.In the reaction of benzylpyrrole, benzyl alcohol was detected as a product, suggesting formation of a benzyl carbonium ion.The relevance of these studies to the van den Bergh test for bilirubin is considered.

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