Introduction
Name: p-aminophenol; 4-aminophenol
* IUPAC
CAS Number: 123-30-8
Molar Mass: 109.12588 g
State of Matter: white powder
Mass Percent: C 66.037 %; H 6.4655 %; N 12.835 %; O 14.661 %
Isomers: N-phenylhydroxylamine • o-aminophenol
Classification
• organic • aromatic • phenol • primary amine
Bonding
Double Bonds: 3
Triple Bonds: 0
Sigma Bonds: 15
Pi Bonds: 3
Total: 18
Carboxyl Groups: 0
Hydroxyl Groups: 1
Hybridization: carbons are sp2; oxygen and nitrogen are sp3
Safety Information
NFPA 704 Ratings:
Health: 2 - Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury.
Flammability: 1 - Must be heated before ignition can occur. Flash point over 93°C (200°F).
Reactivity: 0 - Normally stable, even under fire exposure conditions, and is not reactive with water.
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