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USP

Furosemide Related Compound B

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

4-Chloro-5-sulfamoylanthranilic acid

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About This Item

Empirical Formula (Hill Notation):
C7H7ClN2O4S
CAS Number:
Molecular Weight:
250.66
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

furosemide

manufacturer/tradename

USP

mp

267 °C (dec.) (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

Nc1cc(Cl)c(cc1C(O)=O)S(N)(=O)=O

InChI

1S/C7H7ClN2O4S/c8-4-2-5(9)3(7(11)12)1-6(4)15(10,13)14/h1-2H,9H2,(H,11,12)(H2,10,13,14)

InChI key

QQLJBZFXGDHSRU-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Furosemide Related Compound B USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Pictograms

Environment

Hazard Statements

Precautionary Statements

Hazard Classifications

Aquatic Chronic 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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F Andreasen et al.
Acta pharmacologica et toxicologica, 49(3), 223-229 (1981-09-01)
Three principles for the use of HPLC with spectrophotometric detection to determine the concentration of furosemide and of 4-chloro-5-sulfamoyl anthranilic acid (CSA) were studied. A reversed phase microbondapack C18 column was used for the separation of either unchanged furosemide (I)
Thin-layer chromatographic determination of furosemide and 4-chloro-5-sulfamoyl anthranilic acid in plasma and urine.
B Wesley-Hadzija et al.
Journal of chromatography, 229(2), 425-432 (1982-05-14)
F Andreasen et al.
Acta pharmacologica et toxicologica, 47(3), 202-207 (1980-09-01)
The percentual binding of furosemide (5 micrograms/ml) was slightly but significantly lower in serum from elderly patients than in serum from normal blood donors (96.5 +/- 0.7 versus 97.9 +/- 0.3). A significant positive correlation was demonstrated between protein binding
L Z Benet et al.
Federation proceedings, 42(6), 1695-1698 (1983-04-01)
A variety of furosemide assays and their application to biological samples have been described over the past 2 decades. We describe development of a specific, sensitive assay appropriate for efficient measurement of large numbers of biological samples. With development of
M Hezari et al.
Drug metabolism and disposition: the biological fate of chemicals, 20(6), 882-888 (1992-11-01)
Furosemide (Lasix), a widely used diuretic, is metabolized by the fungus Cunninghamella elegans (ATCC 36112) to 4-chloro-5-sulfamoyl anthranilic acid (CSA), a metabolite also present in mammalian systems. This metabolite was isolated following preparative-scale incubations of C. elegans, and was characterized

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