70382

Supelco

Sodium 1,2-naphthoquinone-4-sulfonate

for spectrophotometric det. of isonicotic hydrazide, amines and amino acids, ≥97.0% (T)

Synonym(s):
1,2-Naphthoquinone-4-sulfonic acid sodium salt, 3,4-Dihydro-3,4-dioxo-1-naphthalenesulfonic acid sodium salt, Folin’s reagent
Empirical Formula (Hill Notation):
C10H5NaO5S
CAS Number:
Molecular Weight:
260.20
Beilstein/REAXYS Number:
4169788
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21
Pricing and availability is not currently available.

assay

≥97.0% (HPLC)
≥97.0% (T)

quality

for spectrophotometric det. of isonicotic hydrazide, amines and amino acids

specific analyte(s)

sodium

application(s)

HPLC: suitable
UV/Vis spectroscopy: suitable
photometry: suitable

solubility

H2O: 50 mg/mL, clear

SMILES string

[Na+].[O-]S(=O)(=O)C1=CC(=O)C(=O)c2ccccc12

InChI

1S/C10H6O5S.Na/c11-8-5-9(16(13,14)15)6-3-1-2-4-7(6)10(8)12;/h1-5H,(H,13,14,15);/q;+1/p-1

InChI key

UBLXEEBHYISRFM-UHFFFAOYSA-M

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Other Notes

Determination of amines

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Hazard Codes

Xi

Risk Statement

36/37/38

Safety Statement

26

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
C. Molins Legua et al.
Fresenius Journal of Analytical Chemistry, 349, 311-311 (1994)
Y. Asahi et al.
Chemical & Pharmaceutical Bulletin, 32, 3093-3093 (1984)
Linjin Ma et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 79(3), 599-602 (2011-05-03)
Boron determination by a charge transfer spectrophotometric method is described. Accompanied the reaction, a charge transfer complex can be formed by lysine with sodium 1, 2-naphthoquinone-4-sulfonate and boron in alkaline solution (pH 12.00). Subsequently, a new reaction mechanism has been...
L G Martinez et al.
Journal of chromatography. B, Biomedical sciences and applications, 718(1), 143-151 (1998-12-01)
Cefotaxime was derivatised with 1,2-naphthoquinone-4-sulphonate (NQS), extracted into solid-phase cartridges (C18) and detected using a UV-visible detection system. Optimum conditions for this new procedure were: hydrogencarbonate-carbonate buffer, pH 10.5, 5-min reaction time at 25 degrees C and an NQS concentration...
Ibrahim A Darwish et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 72(4), 897-902 (2009-01-13)
Spectrophotometric study was carried out, for the first time, to investigate the reaction between the antidepressant fluvoxamine (FXM) and 1,2-naphthoquinone-4-sulphonate (NQS) reagent. In alkaline medium (pH 9), an orange-colored product exhibiting maximum absorption peak (lambda(max)) at 470nm was produced. The...

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