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  • 5-Methyl-2-hydroxyaniline
  • 3-Amino-4-hydroxytoluene
  • 6-Hydroxy-m-toluidine
  • 2-Amino-p-cresol
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  • 1-Amino-2-hydroxy-5-methylbenzene
Formula2-(NH2)-4-(CH3)C6H3OH (C7H9NO)
Description Brown powder.

Registry Numbers and Inventories.
EC Risk PhraseR:36/37/38
EC Safety PhraseS:26-36/37/39
ENCS (MITI) 3-707X
RTECS class Mutagen (M)
UN (DOT)2512
Beilstein ref.4-13-00-01712
Listed on the Toxic Substancs Control Act (TSCA).
Listed on Canadian Non-Domestic Substances List (NDSL).

Formula mass123.16
Melting point, °C133 - 136
Solubility in waterSoluble
Partition coefficient, pKow1.11
Acid/Base10.06 (pKa)

Hazards and Protection.
Storage Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Protection Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Disposal code
Stability Stable under normal temperatures and pressures.
Incompatibilities Oxidizing agents.
Decomposition Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, nitrogen.

Autoignition, °C>250
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential Combustible material: may burn but does not ignite readily.
Hazards Containers may explode when heated.
Combustion products Fire may produce irritating, corrosive and/or toxic gases.

Exposure effects
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
May cause skin irritation.
First aid 
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

UN number2512
Response guide
Hazard class6.1
Packing GroupIII

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