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137063-89-9

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137063-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137063-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,0,6 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137063-89:
(8*1)+(7*3)+(6*7)+(5*0)+(4*6)+(3*3)+(2*8)+(1*9)=129
129 % 10 = 9
So 137063-89-9 is a valid CAS Registry Number.

137063-89-9Upstream product

137063-89-9Downstream Products

137063-89-9Relevant articles and documents

N23-ethenoguanosine and IA′-metamorphosine: 5N NMR spectroscopy and elucidation of physico-chemical properties by kinetic and equilibrium measurements

Glemarec, Corine,Besidsky, Yevgeny,Chattopadhyaya, Jyoti,Kusmierek, Jaroslaw,Lahti, Marjo,Oivanen, Mikko,Loennberg, Harri

, p. 6689 - 6704 (2007/10/02)

Tautomerism, protonation and electronic properties of the base moieties of IA′-metamorphosine (1a), N2,3-ethenoguanosine (2a) and O6-benzyl-N2,3-ethenoguanosine (3a were investigated by 15N NMR spectroscopy. pKa values of the same compounds were determined spectrophotometrically, and hydrolytic stability of the N-glycosidic bond was studied at various hydronium ion concentrations. The base stacking ability and metal ion complexation of N2,3-ethenoguanosine and its 9-ethyl counterpart (7) were elucidated by phase distribution and potentiometric measurements.

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