Skip to Content
Merck
All Photos(3)

Key Documents

A3144

Sigma-Aldrich

Azomethine-H monosodium salt hydrate

~95%

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

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C17H12NNaO8S2 · xH2O
CAS Number:
Molecular Weight:
445.40 (anhydrous basis)
Beilstein:
4100175
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47

Assay

~95%

Quality Level

form

powder

solubility

1 M NaOH: 49.00-51.00 mg/mL, yellow to orange

λmax

340-344 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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

Looking for similar products? Visit Product Comparison Guide

General description

Azomethine-H is used as a color development agent. It is used for the determination of boron, mainly in soil samples.

Application

Azomethine-H monosodium salt hydrate has been used for the colorimetric determination of boron in soil and plants.

Storage Class Code

11 - Combustible Solids

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Jones JB
Laboratory Guide for Conducting Soil Tests and Plant Analysis (2001)
On-line generation and hydrolysis of methyl borate for the spectrophotometric determination of boron in soil and plants with azomethine-H.
Carrero P, et al.
Talanta, 68, 374-374 (2005)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service