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Stains, Fluorescent Dyes & Histology Reagents

PAR, indicator, EP/Ph. Eur., ACS

EP/Ph. Eur. / ACS / ARAvailable on request

PAR, indicator, EP/Ph. Eur., ACS (CAS 16593-81-0) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes
PAR, indicator, EP/Ph. Eur., ACS chemical structure
CAS number16593-81-0
FormulaC11H10N3NaO3
Molar mass255.2 g/mol
HS code29339990
InChIKeyKMHFHNVYQMFVAN-UHFFFAOYSA-M
IUPAC namesodium;3-hydroxy-4-(pyridin-2-yldiazenyl)phenolate;hydrate

About PAR, indicator, EP/Ph. Eur., ACS

PAR, indicator, EP/Ph. Eur., ACS sits in our stains, Fluorescent Dyes & Histology Reagents section and ships worldwide from stock or short lead time. For your records (EP/Ph. Eur. / ACS / AR), the material is defined by CAS 16593-81-0, formula C11H10N3NaO3 and molar mass 255.2 g/mol.

Common uses in the lab and plant

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.

Order it in 1 g and 5 g packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories

Applications

Diagnostics, Life Science and BiotechResearch Labs and UniversitiesTextiles, Dyes and Leather

Grade guides

AR Grade (Analytical Reagent)ACS GradePh. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of PAR, indicator, EP/Ph. Eur., ACS
Product namePAR, indicator, EP/Ph. Eur., ACS
Catalogue numberZX-038724
CAS number16593-81-0
IUPAC namesodium;3-hydroxy-4-(pyridin-2-yldiazenyl)phenolate;hydrate
Molecular formulaC11H10N3NaO3
Molar mass255.2 g/mol
Exact mass255.062
GradeEP/Ph. Eur. / ACS / AR
H-bond donors / acceptors2 / 6
Topological polar surface area81.9 Ų
HS code29339990
InChIKeyKMHFHNVYQMFVAN-UHFFFAOYSA-M
SMILESC1=CC=NC(=C1)N=NC2=C(C=C(C=C2)[O-])O.O.[Na+]
PubChem CID135442939
Synonyms1,3-Benzenediol, 4-(2-pyridinylazo)-, monosodium salt, monohydrate, sodium (E)-3-hydroxy-4-(pyridin-2-yldiazenyl)phenolate hydrate, sodium 3-hydroxy-4-[(1E)-2-(pyridin-2-yl)diazen-1-yl]benzen-1-olate hydrate, 4-(2-pyridylazo) resorcinol monosodium salt hydrate, 4-(2-pyridyldiazenyl)benzene-1,3-diol, sodium salt, hydrate, Sodium 3-oxo-4-[2-(pyridin-2-yl)hydrazinylidene]cyclohexa-1,5-dien-1-olate--water (1/1/1)

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 PAR, indicator, EP/Ph. Eur., ACS
1 gQuoted on request
5 gQuoted on request

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

Questions about PAR, indicator, EP/Ph. Eur., ACS

Which CAS number identifies PAR, indicator, EP/Ph. Eur., ACS?
PAR, indicator, EP/Ph. Eur., ACS is registered under CAS 16593-81-0. You may also see it listed as 1,3-Benzenediol, 4-(2-pyridinylazo)-, monosodium salt, monohydrate, sodium (E)-3-hydroxy-4-(pyridin-2-yldiazenyl)phenolate hydrate, sodium 3-hydroxy-4-[(1E)-2-(pyridin-2-yl)diazen-1-yl]benzen-1-olate hydrate. Our catalogue number for this item is ZX-038724.
What are the formula and molar mass of PAR, indicator, EP/Ph. Eur., ACS?
For PAR, indicator, EP/Ph. Eur., ACS, its formula is C11H10N3NaO3 and its molar mass is 255.2 g/mol. InChIKey KMHFHNVYQMFVAN-UHFFFAOYSA-M lets you match it in any structure database.
What grade and pack sizes are available for PAR, indicator, EP/Ph. Eur., ACS?
This listing is EP/Ph. Eur. / ACS / AR grade. Standard packs are 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with PAR, indicator, EP/Ph. Eur., ACS?
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 PAR, indicator, EP/Ph. Eur., ACS to my country?
Yes. Because PAR, indicator, EP/Ph. Eur., ACS 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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