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55331-64-1

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55331-64-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55331-64-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,3 and 1 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 55331-64:
(7*5)+(6*5)+(5*3)+(4*3)+(3*1)+(2*6)+(1*4)=111
111 % 10 = 1
So 55331-64-1 is a valid CAS Registry Number.

55331-64-1Relevant articles and documents

Glycosidation-anomerisation reactions of 6,1-anhydroglucopyranuronic acid and anomerisation of β-D-glucopyranosiduronic acids promoted by SnCl 4

O'Brien, Colin,Polakova, Monika,Pitt, Nigel,Tosin, Manuela,Murphy, Paul V.

, p. 902 - 909 (2007/10/03)

The reaction of silylated nucleophiles with 6,1-anhydroglucopyranuronic acid (glucuronic acid 6,1-lactones) catalysed by tin(IV) chloride provides 1,2-trans or 1,2-cis (deoxy)glycosides in a manner dependent on the donor structure. The α-glycoside was obt

Glucuronide and sulfate conjugates of ICI 182,780, a pure anti- estrogenic steroid. Order of addition, catalysis and substitution effects in glucuronidation

Ferguson, John R.,Harding, John R.,Lumbard, Keith W.,Scheinmann, Feodor,Stachulski, Andrew V.

, p. 389 - 392 (2007/10/03)

The 3-sulfate 4 and 3- and 17-glucuronide conjugates 5 and 6 of the pure anti-estrogenic steroid ICI 182,780 1, which is expected to be an effective agent for the treatment of breast cancer, have been prepared. The synthesis of 6 could only be satisfactorily achieved using an inverse addition technique, not previously employed in the glucuronic acid series: the value of this technique for some other aglycones is discussed.

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