Diaminophenol hydrochloride

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An aqueous solution of the white crystals is used primarily as a photographic developer. Diaminophenol hydrochloride, or amidol, is also used for fur and hair dyeing and chemical tests for formaldehyde and ammonia.

Synonyms and Related Terms

amidol; acrol

Chemical structure

Diaminophenol hydrochloride.jpg

Other Properties

Soluble in water. Slightly soluble in ethanol.

Composition C6H8(NH2)2OH.2HCl
CAS 137-09-7
Melting Point 205
Molecular Weight mol. wt.=197.07

Hazards and Safety

Skin contact causes severe irritation. Inhalation may cause asthma. Ingestion may cause gastritis, vertigo, convulsions, coma.

Fisher Scientific: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 3026
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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