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55390-39-1

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55390-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55390-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,3,9 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 55390-39:
(7*5)+(6*5)+(5*3)+(4*9)+(3*0)+(2*3)+(1*9)=131
131 % 10 = 1
So 55390-39-1 is a valid CAS Registry Number.

55390-39-1Upstream product

55390-39-1Relevant articles and documents

Structural and Hydrogen Bonding Studies on β-Lactamase Inhibitor Penicillins by PMR Spectroscopy: Part I - Structures of Cloxacillin and Dicloxacillin Sulphoxides

Singh, C. B.,Nanda, R. K.

, p. 340 - 343 (2007/10/02)

Structural characterization of cloxacillin and dicloxacillin sulphoxides prepared in our laboratory indicates the S-configuration mainly as revealed by Nuclear Overhauser Enhancement (NOE) measurements, hydrogen bonding and aromatic solvent induced shift studies, etc.An interesting method of characterization of S-sulphoxides is based on the association of dimethyl sulphoxide with cloxacillin and dicloxacillin sulphoxides.

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