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159708-95-9

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159708-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 159708-95-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,7,0 and 8 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 159708-95:
(8*1)+(7*5)+(6*9)+(5*7)+(4*0)+(3*8)+(2*9)+(1*5)=179
179 % 10 = 9
So 159708-95-9 is a valid CAS Registry Number.

159708-95-9Upstream product

159708-95-9Downstream Products

159708-95-9Relevant articles and documents

Synthesis of 6-chlorotetrazolo[1,5-a]quinazoline and 6-chloro-4,5-dihydrotetrazolo[1,5-a]quinazoline

Skryl’nikova,Khramchikhin,Krivchun

, p. 885 - 886 (2017/05/29)

Reaction of 5-aminotetrazole triethylammonium salt and 2-fluoro-6-chlorobenzaldehyde resulted in the formation of 6-chlorotetrazolo[1,5-a]quinazoline instead of the expected azomethine. Hydrogenation of the obtained quinazoline afforded 6-chloro-4,5-dihydrotetrazolo[1,5-a]quinazoline.

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