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81539-53-9

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81539-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81539-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,3 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81539-53:
(7*8)+(6*1)+(5*5)+(4*3)+(3*9)+(2*5)+(1*3)=139
139 % 10 = 9
So 81539-53-9 is a valid CAS Registry Number.

81539-53-9Upstream product

81539-53-9Downstream Products

81539-53-9Relevant articles and documents

SYNTHESE SIMPLIFIEE DE SONDES MIXTES AVEC DES TRIAZOLO-NUCLEOSIDES

Huynh-Dinh, T.,d'Estaintot, B. Langlois,Allard, P.,Igolen, J.

, p. 431 - 434 (1985)

The incorporation of triazolo-nulleosides during the synthesis of a specific sequence yields, after treatment with a mixture of pyridine aldoximate- tetramethyl guanidine- concentrated ammonia, mixed probes oligonucleotides with practically equimolecular amounts of T/MeC and G/NH2A at the degenerate sites.

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