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55740-06-2

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55740-06-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55740-06-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,4 and 0 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 55740-06:
(7*5)+(6*5)+(5*7)+(4*4)+(3*0)+(2*0)+(1*6)=122
122 % 10 = 2
So 55740-06-2 is a valid CAS Registry Number.

55740-06-2Relevant articles and documents

A novel synthesis of N-but-3-enyl-α- and β-amino acids

Van Nguyen,Brownlee, Robert T. C.,Hughes, Andrew B.

experimental part, p. 1991 - 1998 (2010/03/24)

N-But-3-enyl-α- and β-amino acids can be prepared by cleaving 1,3-oxazolidin-5-ones and 1,3-oxazinan-6-ones in the presence of allylsilanes and boron trifluoride etherate at room temperature in good to excellent yields. Georg Thieme Verlag Stuttgart.

Microwave accelerated efficient synthesis of N-fluorenylmethoxycarbonyl/t-butoxycarbonyl/benzyloxycarbonyl-5- oxazolidinones

Tantry, Subramanyam J.,Kantharaju,Suresh Babu, Vommina V.

, p. 9461 - 9462 (2007/10/03)

The synthesis of N-protected 5-oxazolidinones using amino acids, paraformaldehyde and p-toluene sulfonic acid in a minimum amount of toluene accelerated by microwave irradiation for 3 min in high yield is described.

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