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186416-95-5

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186416-95-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186416-95-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,4,1 and 6 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 186416-95:
(8*1)+(7*8)+(6*6)+(5*4)+(4*1)+(3*6)+(2*9)+(1*5)=165
165 % 10 = 5
So 186416-95-5 is a valid CAS Registry Number.

186416-95-5Downstream Products

186416-95-5Relevant articles and documents

Regioselective synthesis of 9-substituted-8-azaguanines (5-amino-3-substituted-3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7 -one)

Sznaidman,Beauchamp

, p. 1605 - 1610 (2007/10/03)

By modifying previously described methods for the synthesis of 9-substituted-guanines from imidazoles, we have developed a new procedure for the regioselective synthesis of 9-substituted-8-azaguanines (5-amino-3-substituted-3,6-dihydro-7H- 1,2,3-triazolo[4,5-d]pyrimidin-7-one) from triazoles in high yields. The method seems suitable for the introduction of a variety of substituents including sugars, carbocyclic, acyclic and carboacyclic chains.

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