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Hydroxy naphthol blue disodium salt (C20H12N2O11S3Na2)

CAS 165660-27-5 C20H12N2O11S3Na2 MW 598.49 In stock

Hydroxy naphthol blue disodium salt is a chromogenic indicator used in complexometric titrations, particularly for detecting metal ions like calcium and magnesium. It appears as a dark blue crystalline powder and is soluble in water. CAS: 165660-27-5, Molecular Formula: C20H12N2O11S3Na2, Molecular Weight: 598.49 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies Hydroxy naphthol blue disodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

Hydroxy naphthol blue disodium salt is a chromogenic indicator used in complexometric titrations, particularly for detecting metal ions like calcium and magnesium. It appears as a dark blue crystalline powder and is soluble in water. CAS: 165660-27-5, Molecular Formula: C20H12N2O11S3Na2, Molecular Weight: 598.49 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies Hydroxy naphthol blue disodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance Dark blue powder or crystals
Loss on Drying ≤ 6.0%
Absorptivity 350 - 500, 1%/ 1cm in ammonia buffer pH 12.0 +2ml 0.05 M.E.T.D.A at λmax. 648.0nm
Identification (RAMAN) Conforms to Reference

Storage & handling

Property Value
Storage Temperature Ambient
Shelf Life 24 months
Acidity Neutral

Identification

Property Value
CAS Number 165660-27-5
Molecular Formula C20H12N2O11S3Na2
Molecular Weight 598.49
REACH Code Y110
Tariff Code 29270000

Safety & GHS

Warning
  • GHS pictogram — Explosive Explosive GHS01

Hazard statements

  • H319 Causes serious eye irritation

Precautionary statements

  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
  • P337+313 If eye irritation persists get medical advice/attention

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

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Pricing & pack sizes

Pack sizes & pricing

  • 25 g

    €55.35 · per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

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