Skip to content
Molekula

Molekula

Azomethine-H monosodium salt hydrate

SKU 90032280 CAS 206752-32-1 C17H12NNaO8S2.H2O MW 463.419 In stock Bulk quantities on request

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need

Azomethine-H monosodium salt hydrate is an analytical reagent, a Schiff-base condensation product of H-acid with salicylaldehyde, used primarily for the colorimetric (spectrophotometric) determination of boron (borate), for example in soil, water and plant analysis. Its analytical use relies on forming a complex with boric acid, and it is also used for the fluorimetric determination of boron. This chemical has a CAS number of 206752-32-1, with the molecular formula C17H12NNaO8S2·H2O and a molecular weight of 463.419 g/mol. It should be stored at ambient conditions and handled with caution, as indicated by its "Warning" signal word. Molekula supplies Azomethine-H monosodium salt hydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Example image for illustration only. Other packaging and pack sizes are available.

Pricing & pack sizes

Pack sizes & pricing

These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.

Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.

  • 5 g — $161.50 per pack
  • 25 g — $419.90 per pack

Need a different quantity or pack?

Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.

Quantity
Unit
Needed by
Full name
Email
Company
Phone (optional)
Notes

Expect a response within hours

Prices exclude VAT/sales tax and shipping.

Specifications

Property Value
Appearance Yellow to orange powder
Assay ≥95.0%
Water (KF) ≤8.0%
Identification (IR) Passes test
Spec. absorptivity A 1% 1cm (236nm; 0.004% 1cm) ≥1200.0
Suitability (for photometric determination of boron) Conforms.

Storage & handling

Property Value
Storage Temperature Ambient
Acidity Neutral

Identification

Property Value
SKU 90032280
CAS Number 206752-32-1
IUPAC Name sodium;5-hydroxy-4-[(2-hydroxyphenyl)methylideneamino]-7-sulfonaphthalene-2-sulfonate;hydrate
EC Number 227-698-1
Molecular Formula C17H12NNaO8S2.H2O
Molecular Weight 463.419
Exact Mass 463.0008
SMILES C1=CC=C(C(=C1)C=NC2=C3C(=CC(=C2)S(=O)(=O)[O-])C=C(C=C3O)S(=O)(=O)O)O.O.[Na+]
InChIKey AAIGDXDVSZJVSW-UHFFFAOYSA-M
InChI 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
PubChem CID 3083920
REACH Code Y110
HTS Code 2925296000
Tariff Code 2925290090

Safety & GHS

Warning
  • GHS pictogram — Health Hazard Health Hazard GHS07

Hazard statements

  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

Precautionary statements

  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
  • P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
  • P308+313 IF exposed or concerned: Get medical advice/attention

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Synonyms

  • AZOMETHIN-H MONOSODIUM SALT HYDRATE
  • Azomethine H
  • Azomethine-H hydrate monosodium salt
  • Azomethine-H monosodium hydrate
  • Azomethine-H monosodium salt hydrate p.a.
  • Azomethine-H sodium
  • Azomethine-H sodium hydrate
  • AzomethineH, monosodium salt
  • Sodium hydrogen 4-hydroxy-5-(salicylideneamino)naphthalene-2,7-disulphonate

Frequently asked questions

What is Azomethine-H monosodium salt hydrate commonly used for?

Azomethine-H monosodium salt hydrate is primarily used as a reagent for the colorimetric (spectrophotometric) determination of boron (borate), for example in soil, water and plant analysis, based on its complex formation with boric acid. It is also used for the fluorimetric determination of boron.

What is the chemical formula and molecular weight of Azomethine-H monosodium salt hydrate?

The chemical formula is C₁₇H₁₂NNaO₈S₂·H₂O, and the molecular weight is 463.419 g/mol.

How should Azomethine-H monosodium salt hydrate be stored?

Store at ambient temperature in a dry, well-ventilated area, away from direct sunlight and incompatible substances.

What grade or purity level is available for this product?

Molekula supplies this product in analytical/biochemical grade with high purity, suitable for research and diagnostic applications.

Can Molekula supply Azomethine-H monosodium salt hydrate in bulk quantities?

Yes, we can provide bulk quantities upon request, subject to availability and minimum order quantities.

What documentation comes with an order of Azomethine-H monosodium salt hydrate?

Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

Talk to a chemist
Documents Pricing
Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket