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1307803-26-4

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1307803-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1307803-26-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,8,0 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1307803-26:
(9*1)+(8*3)+(7*0)+(6*7)+(5*8)+(4*0)+(3*3)+(2*2)+(1*6)=134
134 % 10 = 4
So 1307803-26-4 is a valid CAS Registry Number.

1307803-26-4Relevant articles and documents

Turnagainolides A and B, cyclic depsipeptides produced in culture by a Bacillus sp.: Isolation, structure elucidation, and synthesis

Li, Dehai,Carr, Gavin,Zhang, Yonghong,Williams, David E.,Amlani, Ashraf,Bottriell, Helen,Mui, Alice L.-F.,Andersen, Raymond J.

, p. 1093 - 1099 (2011)

Two new cyclic depsipeptides, turnagainolides A (1) and B (2), have been isolated from laboratory cultures of a marine isolate of Bacillus sp. The structures of 1 and 2, which are simply epimers at the site of macrolactonization, were elucidated by analysis of NMR data and chemical degradation. A total synthesis of the turnagainolides confirmed their structures. Turnagainolide B (2) showed activity in a SHIP1 activation assay. (Chemical Equation Presented).

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