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Stains, Fluorescent Dyes & Histology Reagents

PAR, indicator, ACS ≥90.00%

ACS / ARAvailable on request

Order PAR, indicator, ACS ≥90.00% (CAS 16593-81-0) online at Zemixal: C11H10N3NaO3, COA and SDS with every lot, worldwide shipping.

Pack sizes
PAR, indicator, ACS ≥90.00% chemical structure
CAS number16593-81-0
FormulaC11H10N3NaO3
Molar mass255.2 g/mol
HS code29333990
Purity≥90.00%
InChIKeyKMHFHNVYQMFVAN-UHFFFAOYSA-M
IUPAC namesodium;3-hydroxy-4-(pyridin-2-yldiazenyl)phenolate;hydrate

About PAR, indicator, ACS ≥90.00%

PAR, indicator, ACS ≥90.00% is part of the Zemixal stains, Fluorescent Dyes & Histology Reagents range. Identity at a glance (ACS / AR): 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
  • Indicator for titrations

Handling and storage

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

Available as 1 g and 5 g. Larger or split packs can be arranged. 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
  • Indicator for titrations

Applications

Grade guides

Specifications and identifiers

Specifications of PAR, indicator, ACS ≥90.00%
Product namePAR, indicator, ACS ≥90.00%
Catalogue numberZX-037082
CAS number16593-81-0
IUPAC namesodium;3-hydroxy-4-(pyridin-2-yldiazenyl)phenolate;hydrate
Molecular formulaC11H10N3NaO3
Molar mass255.2 g/mol
Exact mass255.062
GradeACS / AR
Purity / assay≥90.00%
H-bond donors / acceptors2 / 6
Topological polar surface area81.9 Ų
HS code29333990
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, ACS ≥90.00%
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, ACS ≥90.00%

Which CAS number identifies PAR, indicator, ACS ≥90.00%?
PAR, indicator, ACS ≥90.00% 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-037082.
What are the formula and molar mass of PAR, indicator, ACS ≥90.00%?
For PAR, indicator, ACS ≥90.00%, 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, ACS ≥90.00%?
This listing is ACS / AR grade with ≥90.00% purity. Standard packs are 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with PAR, indicator, ACS ≥90.00%?
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, ACS ≥90.00% to my country?
Yes. Because PAR, indicator, ACS ≥90.00% 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.

Other grades with CAS 16593-81-0

Chromotrope 2B
CAS
548-80-1
Formula
C16H9N3Na2O10S2
MW
513.4 g/mol
ZX-037080

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