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API Reference Standards

Menadiol

Reference StandardAvailable on request

Order Menadiol (CAS 481-85-6) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg. Catalogue no. ZX-039413.

Pack sizes
Menadiol chemical structure
CAS number481-85-6
FormulaC11H10O2
Molar mass174.2 g/mol
Physical formSolid
HS code38229090
InChIKeyZJTLZYDQJHKRMQ-UHFFFAOYSA-N
IUPAC name2-methylnaphthalene-1,4-diol

About Menadiol

Menadiol is supplied by Zemixal as a characterised reference material for Paracetamol analysis. For your records (Reference Standard), the material is defined by CAS 481-85-6, formula C11H10O2 and molar mass 174.2 g/mol. It is handled as a solid.

Typical applications

  • Identification & assay
  • Method development & validation
  • QC reference material

Handling and storage

Classified under GHS with signal word Danger and hazard statements H302, H315, H318 and H335. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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 Paracetamol

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

Paracetamol standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Specifications and identifiers

Specifications of Menadiol
Product nameMenadiol
Catalogue numberZX-039413
CAS number481-85-6
IUPAC name2-methylnaphthalene-1,4-diol
Molecular formulaC11H10O2
Molar mass174.2 g/mol
Exact mass174.0681
GradeReference Standard
Physical formSolid
XLogP32.8
H-bond donors / acceptors2 / 2
Topological polar surface area40.5 Ų
HS code38229090
InChIKeyZJTLZYDQJHKRMQ-UHFFFAOYSA-N
SMILESCC1=C(C2=CC=CC=C2C(=C1)O)O
PubChem CID10209
Synonyms2-Methyl-1,4-naphthohydroquinone, 2-Methyl-1,4-naphthalenediol, Vitamin K3H2, Dihydrovitamin K3, Reduced menadione, Methylnaphthohydroquinone, Reduced vitamin K3, 2-Methylhydronaphthoquinone, 2-Methyl-1,4-naphthoquinol, 1,4-dihydroxy-2-methylnaphthalene, Menadiol (BAN), 2-Methyl-1,4-dihydroxynaphthalene

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

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H318Causes serious eye damage
  • H335May cause respiratory irritation
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P330, P332 + 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 Menadiol
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

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

Questions about Menadiol

Which CAS number identifies Menadiol?
Menadiol is registered under CAS 481-85-6. You may also see it listed as 2-Methyl-1,4-naphthohydroquinone, 2-Methyl-1,4-naphthalenediol, Vitamin K3H2. Our catalogue number for this item is ZX-039413.
What are the formula and molar mass of Menadiol?
For Menadiol, its formula is C11H10O2 and its molar mass is 174.2 g/mol. The systematic (IUPAC) name is 2-methylnaphthalene-1,4-diol. InChIKey ZJTLZYDQJHKRMQ-UHFFFAOYSA-N lets you match it in any structure database.
How is Menadiol used in pharmaceutical QC?
Menadiol is a characterised reference material linked to Paracetamol. 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 Menadiol?
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 Menadiol?
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 Menadiol to my country?
Yes. Because Menadiol 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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