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116019-29-5

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116019-29-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 116019-29-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,0,1 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 116019-29:
(8*1)+(7*1)+(6*6)+(5*0)+(4*1)+(3*9)+(2*2)+(1*9)=95
95 % 10 = 5
So 116019-29-5 is a valid CAS Registry Number.

116019-29-5Downstream Products

116019-29-5Relevant articles and documents

Studies in Nucleosides: Part XVI - Synthesis of Azathioprine Analogues

Mishra, Anil,Pratap, Ram,Bhakuni, D. S.

, p. 847 - 850 (2007/10/02)

6--9-(1'-tetrahydrofuranyl)purine (4) , 6--9-(1'-tetrahydropyranyl)purine (5), 9-hydroxyethoxymethyl-6-purine (6), 6--9-(β-D-ribofuranosyl)purine (12), 9-(α-D-arabinofuranosyl)-6-purine (16) and 9-(β-D-2'-deoxyribofuranosyl)-6-purine (11) have been synthesised.Condensation of 1 with dihydrofuran and dihydropyran gives 4 and 5 respectively in excellent yields.The reaction of 1 separately with benzoyloxyethoxymethylene chloride (2), 1-O-acetylribose derivative (7) and 1-chloro-2-deoxyribose derivative (9) and of the chloromercuric complex (13) with 1-bromoarabinose derivative (14) gives the blocked nucleosides (3, 8, 10 and 15) respectively.Deblocking of the nucleosides with methanolic ammonia finally affords 6, 12, 11 and 16 respectively.

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