Cas 1262785-82-9,6-chloro-9-(tetrahydro-2H-pyran-2-yl)-2,8-bis-triisopropylsilanyl-9H-purine

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Check Digit Verification of cas no

The CAS Registry Mumber 1262785-82-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,2,7,8 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1262785-82:
(9*1)+(8*2)+(7*6)+(6*2)+(5*7)+(4*8)+(3*5)+(2*8)+(1*2)=179
179 % 10 = 9
So 1262785-82-9 is a valid CAS Registry Number.

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1262785-82-9Relevant academic research and scientific papers

Regioselective Sonogashira cross-coupling reactions of 6-chloro-2,8-diiodo- 9-THP-9H-purine with alkyne derivatives

Ibrahim, Nada,Chevot, Franciane,Legraverend, Michel

supporting information; experimental part, p. 305 - 307 (2011/02/26)

Lithiation of 6-chloro-9-(tetrahydro-2H-pyran-2-yl)-9H-purine with LiTMP, gave access to 6-chloro-2,8-dihalogenated purine derivatives. In particular, the 6-chloro-2,8-diiodopurine derivative is an interesting new intermediate which gave regioselectively various 2-alkynylated compounds or 2,8-dialkynylated purines by using an excess of alkyne.

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