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133071-07-5

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133071-07-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133071-07-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,0,7 and 1 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133071-07:
(8*1)+(7*3)+(6*3)+(5*0)+(4*7)+(3*1)+(2*0)+(1*7)=85
85 % 10 = 5
So 133071-07-5 is a valid CAS Registry Number.

133071-07-5Downstream Products

133071-07-5Relevant articles and documents

Isolation and Structure Elucidation of Ergokonin A and B; Two New Antifungal Sterol Antibiotics from Trichoderma koningii

Augustiniak, Hermann,Forche, Edgar,Reichenbach, Hans,Wray, Viktor,Graefe, Udo,Hoefle, Gerhard

, p. 361 - 366 (2007/10/02)

Isolation and structure elucidation by 2D-NMR spectroscopy of the two new antifungal sterol antibiotics ergokonin A (1) and B (2a) from Trichoderma koningii are described.The structures of 1 and 2a are derived from ergosterol and characterized by an 18-carboxy group.In addition ergokonin A (1) is esterified at the 3-hydroxy group with (2S,3S)-3-hydroxyleucine 3-O-sulfate (3c).In the course of structure elucidation of the amino acid residue the stereoisomers of 3-hydroxyleucine N-sulfamate and 3-O-sulfate (3b, c) have been synthesized and characterized by NMR spectroscopy.

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