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1644064-25-4

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1644064-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1644064-25-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,4,0,6 and 4 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1644064-25:
(9*1)+(8*6)+(7*4)+(6*4)+(5*0)+(4*6)+(3*4)+(2*2)+(1*5)=154
154 % 10 = 4
So 1644064-25-4 is a valid CAS Registry Number.

1644064-25-4Downstream Products

1644064-25-4Relevant articles and documents

Synthesis of zearalenone-16-β,D-glucoside and zearalenone-16-sulfate: A tale of protecting resorcylic acid lactones for regiocontrolled conjugation

Mikula, Hannes,Weber, Julia,Svatunek, Dennis,Skrinjar, Philipp,Adam, Gerhard,Krska, Rudolf,Hametner, Christian,Froehlich, Johannes

, p. 1129 - 1134 (2014/06/09)

The development of a reliable procedure for the synthesis of the 16-glucoside and 16-sulfate of the resorcylic acid lactone (RAL) type compound zearalenone is presented. Different protective group strategies were considered and applied to enable the preparation of glucosides and sulfates that are difficult to access up to now. Acetyl and p-methoxybenzyl protection led to undesired results and were shown to be inappropriate. Finally, triisopropylsilyl-protected zearalenone was successfully used as intermediate for the first synthesis of the corresponding mycotoxin glucoside and sulfate that are highly valuable as reference materials for further studies in the emerging field of masked mycotoxins. Furthermore, high stability was observed for aryl sulfates prepared as tetrabutylammonium salts. Overall, these findings should be applicable for the synthesis of similar RAL type and natural product conjugates.

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