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125299-60-7

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125299-60-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125299-60-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,2,9 and 9 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 125299-60:
(8*1)+(7*2)+(6*5)+(5*2)+(4*9)+(3*9)+(2*6)+(1*0)=137
137 % 10 = 7
So 125299-60-7 is a valid CAS Registry Number.

125299-60-7Relevant articles and documents

Stereoselective synthesis of tilivalline

Nagasaka, Tatsuo,Koseki, Yuji

, p. 6797 - 6801 (1998)

Tilivalline 1, a metabolite from Klebsiella pneumoniae var. ocytoca, was easily synthesized in five steps from (S)-proline and 3-(benzyloxy)isatoic anhydride 4g. This synthesis is based on modified Curtius reactions of 3- substituted phthalic anhydrides 11 to 3-substituted isatoic anhydrides 4, conversion of lactams 6 to the acyliminium precursors 7 and stereoselective introduction of indole from the less hindered side of 7.

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