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Sulfur Compounds (Thiols, Sulfides, Sulfonates)

1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+

ARAvailable on request

1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+ (CAS 521-24-4) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

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1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+ chemical structure
CAS number521-24-4
FormulaC10H5NaO5S
Molar mass260.2 g/mol
Physical formPowder
HS code29049040
Purity≥99%
InChIKeyUBLXEEBHYISRFM-UHFFFAOYSA-M
IUPAC namesodium 3,4-dioxonaphthalene-1-sulfonate

About 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+

1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+ is part of the Zemixal sulfur Compounds (Thiols, Sulfides, Sulfonates) range. For your records (AR), the material is defined by CAS 521-24-4, formula C10H5NaO5S and molar mass 260.2 g/mol. Typical appearance is brownish yellow powder.

Where it is used

  • Pharmaceutical synthesis
  • Analytical determinations

Handling and storage

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 5 g, 25 g, 100 g, 1 kg and 25 kg. Larger or split packs can be arranged. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

  • Pharmaceutical synthesis
  • Analytical determinations

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

AR Grade (Analytical Reagent)

Specifications and identifiers

Specifications of 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+
Product name1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+
Catalogue numberZX-009798
CAS number521-24-4
IUPAC namesodium 3,4-dioxonaphthalene-1-sulfonate
Molecular formulaC10H5NaO5S
Molar mass260.2 g/mol
Exact mass259.9755
GradeAR
Purity / assay≥99%
Physical formPowder
AppearanceBrownish yellow powder
H-bond donors / acceptors0 / 5
Topological polar surface area99.7 Ų
HS code29049040
InChIKeyUBLXEEBHYISRFM-UHFFFAOYSA-M
SMILESC1=CC=C2C(=C1)C(=CC(=O)C2=O)S(=O)(=O)[O-].[Na+]
PubChem CID516996
Synonyms3,4-Dihydro-3,4-dioxo-1-naphthalenesulfonic acid sodium salt, Folin's reagent, Sodium 1,2-naphthoquinone-4-sulfonate, 1,2-Naphthoquinone-4-sulfonic acid sodium salt, Sodium beta-naphthoquinone-4-sulfonate, beta-Naphthoquinone-4-sulfonate sodium salt, Sodium 3,4-dihydro-3,4-dioxo-1-naphthalenesulfonate, 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo-, sodium salt (1:1), Sodium 1,2naphthoquinone4sulfonate, Sodium 3,4dioxonaphthalene1sulphonate, betaNaphthoquinone4sulfonate sodium salt, 1,2Naphthoquinone4sulfonic acid sodium salt

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+
5 gQuoted on request
25 gQuoted on request
100 gQuoted on request
1 kgQuoted on request
25 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+

Which CAS number identifies 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+?
1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+ is registered under CAS 521-24-4. You may also see it listed as 3,4-Dihydro-3,4-dioxo-1-naphthalenesulfonic acid sodium salt, Folin's reagent, Sodium 1,2-naphthoquinone-4-sulfonate. Our catalogue number for this item is ZX-009798.
What are the formula and molar mass of 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+?
For 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+, its formula is C10H5NaO5S and its molar mass is 260.2 g/mol. The systematic (IUPAC) name is sodium 3,4-dioxonaphthalene-1-sulfonate. InChIKey UBLXEEBHYISRFM-UHFFFAOYSA-M lets you match it in any structure database.
What grade and pack sizes are available for 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+?
This listing is AR grade with ≥99% purity. Standard packs are 5 g, 25 g, 100 g, 1 kg, 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+ to my country?
Yes. Because 1,2-Naphthoquinone-4-sulphonic acid sodium salt, GR 99%+ is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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