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3H-1,2,3-Triazolo[4,5-d]pyrimidine, 5-chloro-7-iodo-3-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139300-72-4

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139300-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139300-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,0 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139300-72:
(8*1)+(7*3)+(6*9)+(5*3)+(4*0)+(3*0)+(2*7)+(1*2)=114
114 % 10 = 4
So 139300-72-4 is a valid CAS Registry Number.

139300-72-4Relevant academic research and scientific papers

Triazolo[4,5-d]pyrimidines. X. Halogen-metal exchange reaction of 7-halo-3-phenyl-3H-1,2,3-triazolo[4,5-d)pyrimidines with butyllithium

Tanji,Kato,Higashino

, p. 2793 - 2796 (2007/10/02)

The amino group at the 7-position on the 3H-1,2,3-triazolo[4,5-d]pyrimidine ring was converted into halogen atoms by treatment with isopentyl nitrite in halomethanes, in satisfactory yields. The halogen-metal exchange reaction between 7-iodo-3-phenyl-3H-1

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