O-Anisidine

  • O-Anisidine
O-Anisidine
  • 90-04-0
  • C7H9NO

o-Anisidine can be used to produce azo dye, ice dye, chromophenol as-ol and guaiacol, Anli, etc. As the intermediate of medicine and dyestuff, it is also used in food industry to produce vanillin. It is used as complex indicator, intermediate of azo dye and bactericide, intermediate of dye, perfume and medicine.

Description

o-Anisidine (2-anisidine) is a yellow liquid with a melting point of -1 to 5 °C and a density of 1.09 g/cm3. The vapor pressure is 0.05 mbar at 20 °C but increases greatly with temperature. It has an aromatic smell and is well absorbed by inhalation, oral ingestion and skin contact. o-Anisidine is a very toxic agent that causes blood, enzyme and nerve damage with cyanosis and the danger of suffocation. The agent is an experimental carcinogen and is strongly suspected to be a human carcinogen also. o-Anisidine has dangerous pollutant properties for water. Non-wastewaters from the production of dyes containing o-Anisidine are listed as RCRA hazardous waste, with the code K181. o-Anisidine is used in the manufacture of dyes. Workers in the dye industry may be occupationally exposed to it. Acute (short-term) exposure to o-anisidine results in skin irritation in humans. Workers exposed to o-anisidine by inhalation for 6 months developed headaches, vertigo, and effects on the blood. Animal studies have reported effects on the blood from chronic (long-term) dermal exposure to o-anisidine. No information is available on the reproductive, developmental, or carcinogenic effects of o-anisidine in humans. Animal studies have reported tumors of the urinary bladder from oral exposure to o-anisidine. EPA has not classified o-anisidine for carcinogenicity. The International Agency for Research on Cancer (IARC) has classified o-anisidine as a Group 2B, possible human carcinogen.

Basic Info

Chemical Nameo-Anisidine
Synonyms

o-methoxyaniline

CAS No.90-04-0
Molecular FormulaC7H9NO
Molecular Weight123.15200
PSA35.25000
LogP1.85860

Properties

Appearance & Physical Stateyellowish liquid turns brownish on exposure to air
Density1.092
Boiling Point225ºC
Melting Point41704ºC
Flash Point107ºC
Refractive Index1.573-1.575
Water Solubility13 g/L (20 ºC)
StabilityStable. Incompatible with strong oxidizing agents, acid anhydrides, chloroformates, acids, some plastics, rubber. Air sensitive.
Storage ConditionRefrigerator

Safety Info

RTECSBZ5410000
Hazard Class6.1
Safety StatementsS45-S53
HS Code2922199090
WGK Germany3
Packing GroupIII
RIDADRUN 2431
Risk StatementsR23/24/25; R45; R68
Hazard CodesT


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