CAS 123-31-9

Hydroquinone

Description:

Hydroquinone, with the CAS number 123-31-9, is an organic compound characterized by its aromatic structure, specifically a dihydroxybenzene derivative. It appears as a white crystalline solid and is soluble in water, alcohol, and ether. Hydroquinone is known for its reducing properties and is commonly used as a photographic developer, antioxidant in various applications, and a skin-lightening agent in cosmetics due to its ability to inhibit melanin production. It has a melting point around room temperature and exhibits a slightly sweet taste. Hydroquinone can undergo oxidation to form benzoquinone, which is a more reactive compound. While it is generally considered safe in low concentrations, prolonged exposure or high doses can lead to skin irritation and other health concerns, prompting regulatory scrutiny in some regions. Its use in cosmetic formulations is often subject to concentration limits to mitigate potential adverse effects. Overall, hydroquinone is a versatile compound with significant applications in both industrial and cosmetic fields.

Formula: C₆H₆O₂

InChI: InChI=1/C9H6O4/c10-6-3-5-1-2-9(12)13-8(5)4-7(6)11/h1-4,10-11H

InChI key: InChIKey=QIGBRXMKCJKVMJ-UHFFFAOYSA-N

SMILES: OC1=CC=C(O)C=C1

Synonyms:

• 1,4-Benzenediol
• 1,4-Benzoquinol
• 1,4-Dihydroxy benzene
• 1,4-Dihydroxy-benzol
• 1,4-Dihydroxybenzene
• 1,4-Phenylenediol
• 1,4-p-Benzenediol
• 4-Hydroxyphenol
• 6,7-dihydroxy-2H-chromen-2-one
• Aida
• Arctuvin
• Benzene, 1,4-Dihydroxy-
• Benzene-1,4-Diol
• Benzohydroquinone
• Benzoquinol
• Black & White Bleaching Cream
• Bq(H)
• Diak 5
• Dihydroquinone
• Eldopacque
• Eldopaque
• Eldopaque Forte
• Eldoquin
• Eldoquin Forte
• He 5
• Hidroquinona
• Hydrochinon
• Hydroquinol
• Hydroxyquinone
• Nsc 9247
• P-Dihydroxybenzene
• P-Hydroxyphenol
• Phiaquin
• Quinol
• Solaquin Forte
• Solution Q
• Tecquinol
• Tenox HQ
• p-Benzenediol
• p-Dihydroquinone
• p-Dioxybenzene
• p-Hydroquinone
• p-Phenylenediol
• p-Quinol
• Hydroquinone
• HYDROXYQUINOL
• 1,4-Benzenediol (hydroquinone)
• PYROGENTISIC ACID
• 1,4-Dihydroxybenzen
• 1,4-dihydroxybenzen(czech)
• AKOS BBS-00004220
• 1,4-Dihydroxy-benzeen
• p-Djbydroxybenzene
• alpha-hydroquinone
• 1,4-Diidrobenzene

Hydroquinone

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: >99.0%(T)

Color and Shape: White to Almost white powder to crystal

Molecular weight: 110.11

Ref: 3B-H0186

Hydroquinone, 99%

CAS: 123-31-9

Hydroquinone is used as a reducing agent and finds applications in black and white photographic developers for film and paper along with 4-(methylamino)phenol sulfate (metol). In this application, silver halides are reduced to elemental silver. It acts as a polymerization inhibitor which prevents po

Formula: C₆H₆O₂

Purity: 99%

Color and Shape: White to pale cream, Crystals or powder or crystalline powder

Molecular weight: 110.11

Ref: 02-A11411

Phenindione

CAS: 123-31-9, 83-12-5

Phenindione

Formula: C₁₅H₁₀O₂

Purity: 97.3%

Color and Shape: White

Molecular weight: 222.06808

Ref: 47-1208

Hydroquinone

CAS: 123-31-9

Hydroquinone

Formula: C₆H₆O₂

Purity: 99.7%

Color and Shape: White

Molecular weight: 110.03678

Ref: 47-1206

Hydroquinone

CAS: 123-31-9

Hydroquinone (quinol)

Formula: C₆H₆O₂

Color and Shape: Tan Grey Colorless White Solid Crystals Needles

Molecular weight: 110.03678

Ref: 45-1324002

Hydroquinone, USP grade

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: 99.0 - 100.5 % (anhydrous basis)

Color and Shape: White to off-white crystalline powder or flakes

Molecular weight: 110.11

Ref: 7W-GK9119

Hydroquinone

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: (HPLC) ≥ 99.5% (dried basis)

Color and Shape: White to off-white crystalline powder or flakes

Molecular weight: 110.11

Ref: 7W-GK0341

Hydroquinone

CAS: 123-31-9

Formula: C₆H₆O₂

Molecular weight: 110.11

Ref: 4Z-H-1612

Hydroquinone

CAS: 123-31-9

Hydroquinone

Purity: ≥95%

Molecular weight: 110.11g/mol

Ref: 54-OR97827

EPA Method 8270 Organochlorine Pesticides Mixture 1000 µg/mL in Methyl tert-butyl ether

Controlled Product

CAS: 1024-57-3, 1031-07-8, 123-31-9, 309-00-2, 319-84-6, 319-85-7, 319-86-8, 33213-65-9, 50-29-3, 5103-71-9, 5103-74-2, 53494-70-5, 58-89-9, 60-57-1, 72-20-8, 72-43-5, 72-54-8, 72-55-9, 7421-93-4, 76-44-8, 959-98-8

Formula: C₁₄H₁₀Cl₄

Color and Shape: Mixture

Molecular weight: 320.04

Ref: 04-GA09000427MB

Benzene-1,4-diol (Hydroquinone)

CAS: 123-31-9

Color and Shape: Neat

Ref: 86-MM0632.01

Hydroquinone

Controlled Product

CAS: 123-31-9

Formula: C₆H₆O₂

Color and Shape: Neat

Molecular weight: 110.11

Ref: 04-C14223000

Hydroquinone

CAS: 123-31-9

Hydroquinone

Formula: C₆H₆O₂

Purity: ≥ 98.0 % (HPLC)

Color and Shape: Powder

Molecular weight: 110.11

Ref: 5G-80712

Hydroquinone

Controlled Product

CAS: 123-31-9

Stability Unstable in Air
Applications Hydroquinone is used as photographic reducer and developer; as reagent in the determination of small quantities of phosphate; as antioxidant. Depigmentor.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Woodard, et al.: Fed. Proc., 8, 348 (1949), Kari, F.W., et al.: Food Chem. Toxicol., 30, 737 (1992),

Formula: C₆H₆O₂

Color and Shape: Neat

Molecular weight: 110.11

Ref: TR-H714715

Hydroquinone

CAS: 123-31-9

Hydroquinone is a phenolic compound that is used as an antioxidant and a photographic chemical. It can be synthesized in two ways: by reduction of benzene or by oxidation of p-hydroxybenzoic acid. Hydroquinone has been shown to have genotoxic effects, which may be due to its ability to generate reactive oxygen species (ROS) and induce oxidation reactions. Hydroquinone also has antimicrobial properties, which are due to the production of ROS in bacterial cells. The redox cycle involves the conversion of hydroquinone into benzene, followed by its reduction back into hydroquinone. This cycle is facilitated by the presence of p-hydroxybenzoic acid and dehydroascorbic acid, which act as electron donors and acceptors. The reaction mechanism involves the transfer of electrons from one molecule to another through a series of intermediates; this process leads to the formation of hydrogen peroxide and superoxide anion radicals.

Formula: C₆H₆O₂

Purity: Min. 95%

Color and Shape: White Clear Liquid

Molecular weight: 110.11 g/mol

Ref: 3D-FH01233

Hydroquinone

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: 99.0%

Color and Shape: Solid, Powder or Crystalline Powder

Molecular weight: 110.112

Ref: 10-F146000

Butylhydroxyanisole EP Impurity A

CAS: 123-31-9

Formula: C₆H₆O₂

Molecular weight: 110.10

Ref: ST-EA-CP-B101003

Hydroquinone extrapure AR, 99%

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: min. 99%

Color and Shape: White to off-white, Crystalline powder, Clear

Molecular weight: 110.11

Ref: SR-25311

Hydroquinone pure, 98%

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: min. 98%

Color and Shape: White to off-white, Crystalline powder, Clear, Colourless to pale pink

Molecular weight: 110.11

Ref: SR-28449

Hydroquinone extrapure AR, ExiPlus, Multi-Compendial, 99%

CAS: 123-31-9

Formula: C₆H₆O₂

Purity: min. 99 %

Color and Shape: White to off-white, Crystalline powder, Clear

Molecular weight: 110.11

Ref: SR-17732