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11635

Sigma-Aldrich

Azomethine-H monosodium salt hydrate

p.a.

Synonym(s):

4-Hydroxy-5-(2-hydroxybenzylideneamino)-naphthalene-2,7-disulfonic acid monosodium salt hydrate, 4-Hydroxy-5-(salicylideneamino)-2,7-naphthalenedisulfonic acid monosodium salt

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About This Item

Empirical Formula (Hill Notation):
C17H12NNaO8S2 · xH2O
CAS Number:
Molecular Weight:
445.40 (anhydrous basis)
Beilstein:
4100175
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.21

grade

p.a.

Quality Level

form

solid

technique(s)

UV/Vis spectroscopy: suitable

SMILES string

O.[Na+].Oc1ccccc1\C=N\c2cc(cc3cc(cc(O)c23)S(O)(=O)=O)S([O-])(=O)=O

InChI

1S/C17H13NO8S2.Na.H2O/c19-15-4-2-1-3-10(15)9-18-14-7-12(27(21,22)23)5-11-6-13(28(24,25)26)8-16(20)17(11)14;;/h1-9,19-20H,(H,21,22,23)(H,24,25,26);;1H2/q;+1;/p-1/b18-9+;;

InChI key

AAIGDXDVSZJVSW-IFJQNBRBSA-M

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Application

Azomethine-H monosodium salt hydrate is a complexing agent used to determine the concentration of boron in the aqueous solutions by the colorimetric method.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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R.A. Edwards
Analyst, 105, 139-139 (1980)
G.D. Schucker et al.
Analytica Chimica Acta, 75, 95-95 (1975)

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