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6388-45-0

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6388-45-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6388-45-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,8 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6388-45:
(6*6)+(5*3)+(4*8)+(3*8)+(2*4)+(1*5)=120
120 % 10 = 0
So 6388-45-0 is a valid CAS Registry Number.

6388-45-0Relevant articles and documents

Indoxylic acid esters as convenient intermediates towards indoxyl glycosides

Boettcher, Stephan,Thiem, Joachim

, p. 564 - 574 (2014/02/14)

Indoxylic acid methyl and allyl esters with varied halide-substitution patterns were obtained in excellent yields using a scalable route. Phase-transfer glycosylation of these key intermediates was carried out with various glycosyl halides. Subsequent mild silver-mediated decarboxylation followed by Zemplen deacetylation led to indoxyl glycosides in good overall yields. Indoxyl glycosides are well-established and widely used tools for enzyme screening and enzyme-activity monitoring. In the past, their synthesis has been difficult, so this new approach has led to a variety of useful structures. Indoxyl glycosides with varied halide-substitution patterns were synthesized using indoxylic acid esters as key intermediates. Glycosylation under phase-transfer conditions, ester cleavage, and mild decarboxylation led to the indoxyl glycosides in good yields. This approach enables access to a number of different indoxyl compounds. Copyright

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