4,4'-(Diazene-1,2-diyl)diphenol

Name: 4,4'-(Diazene-1,2-diyl)diphenol
Brand: Zemixal
SKU: ZX-035964

Reference StandardAvailable on request

Buy 4,4'-(Diazene-1,2-diyl)diphenol (CAS 2050-16-0) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Quotes within one business day.

Pack sizes

4,4'-(Diazene-1,2-diyl)diphenol chemical structure

CAS number2050-16-0

FormulaC₁₂H₁₀N₂O₂

Molar mass214.22 g/mol

Physical formSolid

HS code38229090

InChIKeyWKODVHZBYIBMOC-UHFFFAOYSA-N

IUPAC name4-[(4-hydroxyphenyl)diazenyl]phenol

About 4,4'-(Diazene-1,2-diyl)diphenol

Analytical teams working on Phenacetin use 4,4'-(Diazene-1,2-diyl)diphenol as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 2050-16-0, formula C12H10N2O2 and molar mass 214.22 g/mol. It is handled as a solid.

Where it is used

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Danger: H302, H319 and H334). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Phenacetin

See every impurity, metabolite and related compound we list for this API.

Phenacetin standards

Typical uses

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 4,4'-(Diazene-1,2-diyl)diphenol
Product name	4,4'-(Diazene-1,2-diyl)diphenol
Catalogue number	ZX-035964
CAS number	2050-16-0
IUPAC name	4-[(4-hydroxyphenyl)diazenyl]phenol
Molecular formula	C₁₂H₁₀N₂O₂
Molar mass	214.22 g/mol
Exact mass	214.0742
Grade	Reference Standard
Physical form	Solid
XLogP3	3.4
H-bond donors / acceptors	2 / 4
Topological polar surface area	65.2 Å²
HS code	38229090
InChIKey	WKODVHZBYIBMOC-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1N=NC2=CC=C(C=C2)O)O
PubChem CID	101245
Synonyms	4,4'-Dihydroxyazobenzene, 4,4'-Azodiphenol, 4,4'-Azobis(phenol), trans-4,4'-Azodiphenol, Phenol, 4,4'-(1,2-diazenediyl)bis-, p-Azophenol, Phenol, 4,4'-azobis-, p,p'-Dihydroxyazobenzene, Phenol, 4,4'-azodi, 4-(4-Hydroxyphenylazo)phenol, Phenol, 4,4'-(1E)-1,2-diazenediylbis-, (e)-4,4'-(diazene-1,2-diyl)diphenol

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

Safety and GHS hazards

Irritant or harmful

Health hazard

Signal word Danger

H302Harmful if swallowed
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements P233, P260, P264, P264 + P265, P270, P271, P280, P284, P301 + P317, P304 + P340, P305 + P351 + P338, P330, P337 + P317, P342 + P316, P403, 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 4,4'-(Diazene-1,2-diyl)diphenol
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

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

Questions about 4,4'-(Diazene-1,2-diyl)diphenol

Which CAS number identifies 4,4'-(Diazene-1,2-diyl)diphenol?

4,4'-(Diazene-1,2-diyl)diphenol is registered under CAS 2050-16-0. You may also see it listed as 4,4'-Dihydroxyazobenzene, 4,4'-Azodiphenol, 4,4'-Azobis(phenol). Our catalogue number for this item is ZX-035964.

What are the formula and molar mass of 4,4'-(Diazene-1,2-diyl)diphenol?

For 4,4'-(Diazene-1,2-diyl)diphenol, its formula is C12H10N2O2 and its molar mass is 214.22 g/mol. The systematic (IUPAC) name is 4-[(4-hydroxyphenyl)diazenyl]phenol. InChIKey WKODVHZBYIBMOC-UHFFFAOYSA-N lets you match it in any structure database.

How is 4,4'-(Diazene-1,2-diyl)diphenol used in pharmaceutical QC?

4,4'-(Diazene-1,2-diyl)diphenol is a characterised reference material linked to Phenacetin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for 4,4'-(Diazene-1,2-diyl)diphenol?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 4,4'-(Diazene-1,2-diyl)diphenol?

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 4,4'-(Diazene-1,2-diyl)diphenol to my country?

Yes. Because 4,4'-(Diazene-1,2-diyl)diphenol 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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