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Stains, Fluorescent Dyes & Histology Reagents

Ethyl red

Available on request

Order Ethyl red (CAS 76058-33-8) online at Zemixal. Request a quote with price, lead time and documents. Quotes within one business day.

Pack sizes
Ethyl red chemical structure
CAS number76058-33-8
FormulaC17H19N3O2
Molar mass297.35 g/mol
InChIKeyHBRCDTRQDHMTDA-UHFFFAOYSA-N
IUPAC name2-[[4-(diethylamino)phenyl]diazenyl]benzoic acid

About Ethyl red

Zemixal supplies Ethyl red within its laboratory Chemicals & Reagents portfolio. Identity at a glance: CAS 76058-33-8, formula C17H19N3O2 and molar mass 297.35 g/mol.

Common uses in the lab and plant

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Biological staining

Handling and storage

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

Order it in 10 g packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Biological staining

Applications

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

Specifications and identifiers

Specifications of Ethyl red
Product nameEthyl red
Catalogue numberZX-018919
CAS number76058-33-8
IUPAC name2-[[4-(diethylamino)phenyl]diazenyl]benzoic acid
Molecular formulaC17H19N3O2
Molar mass297.35 g/mol
Exact mass297.1477
XLogP34.1
H-bond donors / acceptors1 / 5
Topological polar surface area65.3 Ų
InChIKeyHBRCDTRQDHMTDA-UHFFFAOYSA-N
SMILESCCN(CC)C1=CC=C(C=C1)N=NC2=CC=CC=C2C(=O)O
PubChem CID54832
SynonymsEthyl Red [not Cyanin dyes], 4-Diethylaminoazobenzene-2'-carboxylic acid, (E)-2-((4-(diethylamino)phenyl)diazenyl)benzoic acid, Benzoic acid, 2-((4-(diethylamino)phenyl)azo)-, Benzoic acid, 2-[[4-(diethylamino)phenyl]azo]-, Benzoic acid, 2-[2-[4-(diethylamino)phenyl]diazenyl]-, Ethyl Red Indicator, 2-{[4-(diethylamino)phenyl]diazenyl}benzoic acid, Ethyl red indicator (4.5-6.5), 2-[4-(diethylamino)phenyl]azobenzoic acid, 4-(Diethylamino)azobenzene-2'-carboxylic acid, 2-([4-(Diethylamino)phenyl]diazenyl)benzoic acid #

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 Ethyl red
10 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 Ethyl red

Which CAS number identifies Ethyl red?
Ethyl red is registered under CAS 76058-33-8. You may also see it listed as Ethyl Red [not Cyanin dyes], 4-Diethylaminoazobenzene-2'-carboxylic acid, (E)-2-((4-(diethylamino)phenyl)diazenyl)benzoic acid. Our catalogue number for this item is ZX-018919.
What are the formula and molar mass of Ethyl red?
For Ethyl red, its formula is C17H19N3O2 and its molar mass is 297.35 g/mol. The systematic (IUPAC) name is 2-[[4-(diethylamino)phenyl]diazenyl]benzoic acid. InChIKey HBRCDTRQDHMTDA-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Ethyl red?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 g. Larger quantities and custom packing can be quoted on request.
Which documents come with Ethyl red?
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 Ethyl red to my country?
Yes. Because Ethyl red 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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