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251538-17-7

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251538-17-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 251538-17-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,5,3 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 251538-17:
(8*2)+(7*5)+(6*1)+(5*5)+(4*3)+(3*8)+(2*1)+(1*7)=127
127 % 10 = 7
So 251538-17-7 is a valid CAS Registry Number.

251538-17-7Relevant articles and documents

Stereoselective synthesis of several azido/amino- and diazido/diamino-myo-inositols and their phosphates from p-benzoquinone

Podeschwa, Michael A.L.,Plettenburg, Oliver,Altenbach, Hans-Josef

, p. 1919 - 1929 (2007/10/03)

A practical route is described for the preparation of azido-myo-inositols, amino-myo-inositols and azido-conduritol B derivatives. Starting from p-benzoquinone, optically pure compounds in both forms can be prepared via enzymatic resolution of a derived diacetoxy conduritol B derivative. Selective introduction of nitrogen-containing functional groups in four of the six possible positions in the cyclitol moiety is followed by further functionalization to yield the target compounds.

Enantioselective synthesis of (-)-LL-C10037α from benzoquinone

Murphy, Sean T.,Bencsik, Josef R.,Johnson, Carl R.

, p. 1483 - 1485 (2008/02/09)

(formula presented) The enantioselective total synthesis of the Streptomyces metabolite (-)-LL-C10037α has been accomplished in 10 steps and 20% overall yield. An early chiral intermediate was resolved with Candida rugosa lipase to provide (+)-5 with an e

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