Hydroquinone, GR 99%+

Name: Hydroquinone, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-003837

About Hydroquinone, GR 99%+

Vaqora Chemicals supplies Hydroquinone in AR grade, a natural product registered under CAS number 123-31-9 at a purity of ≥99%. The compound has the formula C6H6O2, corresponding to a molecular weight of 110.11 g/mol. Its systematic (IUPAC) name is benzene-1,4-diol. Alternative names: 1,4-Benzenediol and 1,4-Dihydroxybenzene.

In its supplied form it is a white crystalline powder to powder. Literature values give a melting point of 171-173 °C and a boiling point of 285 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include phytochemical research, natural product screening, nutraceutical R and D and reduction reactions. Typical end-use sectors are academic and industrial research and diagnostics and biotechnology.

We offer Hydroquinone in 100 g, 500 g, 5 kg and 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Phytochemical research
Natural product screening
Nutraceutical R&D
Reduction reactions

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Hydroquinone, GR 99%+
Catalogue No.	VQ-003837
CAS Number	123-31-9
IUPAC name	benzene-1,4-diol
Molecular formula	C₆H₆O₂
Molecular weight	110.11 g/mol
Exact mass	110.0368
Grade	AR
Purity / assay	≥99%
HSN code	29072200
InChIKey	QIGBRXMKCJKVMJ-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1O)O
PubChem CID	785

Physical properties
Physical form	Powder
Appearance	White crystalline powder to powder
Melting point	171-173 °C
Boiling point	285 °C
LogP (XLogP3)	0.6
H-bond donors / acceptors	2 / 2
TPSA	40.5 Å²
Synonyms	1,4-Benzenediol, 1,4-Dihydroxybenzene, Quinol, p-Hydroquinone, p-Hydroxyphenol, p-Benzenediol, p-Dihydroxybenzene, 4-Hydroxyphenol, hydroquinol, Benzoquinol, Eldoquin, Phiaquin

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H317May cause an allergic skin reaction
H318Causes serious eye damage
H341Suspected of causing genetic defects
H351Suspected of causing cancer
H400Very toxic to aquatic life

Precautionary statements: P203, P261, P264, P264 + P265, P270, P272, P273, P280, P301 + P317, P302 + P352, P305 + P354 + P338, P317, P318, P321, P330, P333 + P317, P362 + P364, P391, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 123-31-9

Synthesis

Hydroquinone, 99%

CAS: 123-31-9
Formula: C₆H₆O₂
MW: 110.11 g/mol

VQ-003836

USP / AR

Hydroquinone, USP, AR

CAS: 123-31-9
Formula: C₆H₆O₂
MW: 110.11 g/mol

VQ-047247

Frequently asked questions

What is the CAS number of Hydroquinone, GR 99%+?

The CAS Registry Number of Hydroquinone, GR 99%+ is 123-31-9. It is also known as 1,4-Benzenediol, 1,4-Dihydroxybenzene, Quinol.

What is the molecular formula and molecular weight of Hydroquinone, GR 99%+?

Hydroquinone, GR 99%+ has the molecular formula C6H6O2 and a molecular weight of 110.11 g/mol. Its IUPAC name is benzene-1,4-diol.

Which grade and pack sizes of Hydroquinone, GR 99%+ can I order?

We supply Hydroquinone, GR 99%+ in AR (≥99%) grade, in 100 g, 500 g, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Hydroquinone, GR 99%+?

Yes. Every lot of Hydroquinone, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Hydroquinone, GR 99%+ be shipped internationally?

Yes. Hydroquinone, GR 99%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.