
1) Photographic chemical 2) Reducing agent
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https://www.crosswordclues.com/clue/hydroquinone

1) Quinol
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https://www.crosswordclues.com/clue/hydroquinone

Dangerous for the environment (N) | NFPA-H = 2 | NFPA-F = 1 | NFPA-R = | NFPA_Ref= | RPhrases = {R22} {R40} {R41} {R43} {R50} {R68} | SPhrases = {S2} {S26} {S36/37/39} {S61} | FlashPtC = 165 Hydroquinone, also benzene-1,4-diol or quinol, is an aromatic organic compound that is a type of phenol, having the chemical formula C6H4(OH)2. Its chemical s...
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http://en.wikipedia.org/wiki/Hydroquinone

• (n.) A white crystalline substance, C6H4(OH)2, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also dihydroxy benzene.
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http://thinkexist.com/dictionary/meaning/hydroquinone/

colourless, crystalline organic compound formed by chemical reduction of benzoquinone. See quinone.[1 related articles]
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http://www.britannica.com/eb/a-z/h/89

(hi″dro-kwĭ-nōn´) a topical agent used to bleach hyperpigmented skin.
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http://www.encyclo.co.uk/local/21001

A developing agent, also know as Quinol
Found on
http://www.encyclo.co.uk/local/21048
Hy`dro·qui'none noun [
Hydro- , 2 +
quinone .]
(Chemistry) A white crystalline substance, C
6 H
4 (OH)
2 , obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also
dihydro...Found on
http://www.encyclo.co.uk/webster/H/77

Hydroquinone is a reducing agent used in photographic developers.
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http://www.probertencyclopaedia.com/browse/GH.HTM

A developing agent, also know as Quinol.
Found on
http://www.rodsmith.org.uk/photographic%20glossary/rods%20photographic%20gl

Hydroquinone is a white crystalline compound used in skincare products as a bleaching agent.
Found on
http://www.sherrayorganiccosmetics.com/did-you-know/beauty-skincare-glossar

Available without a prescription in strengths up to 2 percent (4 percent in prescription formulas), it inhibits pigment production to lighten dark spots.
Found on
https://www.allure.com/story/skin-care-terms-glossary-definitions

A reducing agent used in photographic developers.
Found on
https://www.encyclo.co.uk/local/20687

Hydroquinone is a white crystalline compound used in skincare products as a bleaching agent.
Found on
https://www.encyclo.co.uk/local/21763

Controversial compound used in skin bleaching; associated with cancer.
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https://www.encyclo.co.uk/local/22766

Directly causes cancer.
Found on
https://www.encyclo.co.uk/local/22769

An ingredient for lightening or bleaching age spots and other forms of hyper pigmentation on the skin. Prescription only.
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https://www.encyclo.co.uk/local/22770

a white, crystalline compound, CHO, formed by the reduction of quinone: used chiefly in photography and to inhibit autoxidation reactions. Also called
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https://www.infoplease.com/dictionary/hydroquinone

Inhibitor of melanin production and known as one the most effective ingredients for reducing and possibly eliminating brown spots and hyperpigmentation.
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https://www.ulta.com/glossary/
No exact match found.