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67604-85-7

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67604-85-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67604-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,0 and 4 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 67604-85:
(7*6)+(6*7)+(5*6)+(4*0)+(3*4)+(2*8)+(1*5)=147
147 % 10 = 7
So 67604-85-7 is a valid CAS Registry Number.

67604-85-7Upstream product

67604-85-7Relevant articles and documents

A 15N-STUDY ON THE DEAMINATION OF 1-AMINOPURINIUM SALTS WITH AMINES

Kos, Nico J.,Jongejan, Hugo,Plas, Henk C. van der

, p. 369 - 374 (2007/10/02)

Reaction of 1-aminoadenosinium mesitylenesulphonate, 1a, with methanolic ammonia for 10 h at 80 deg C yields adenosine, 7a, and nebularine, 6a.With methanolic methylamine 1a gives 6-methylamino-9-β-D-ribofuranosylpurine, 8a, and adenosine, 7a, respectively.Similar results are obtained with the salt of 1-amino-2',3'-O-isopropylideneadenosine, 1b. 1-Aminoadeninium mesitylenesulphonate, 1c, with methanolic methylamine only yields 6-(methylamino)purine, 8c.In contrast, the mesitylenesulphonate salt of 1,2-diaminopurine, 11, with methanolic methylamine gives only deamination at N1, affording 2-aminopurine, 12.Studies with 15N-labelled methanolic ammonia or 15N-labelled purinium compounds show that in all these reactions, except that of 11, a ring-opening mechanism (ANRORC-mechanism) is involved.

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