4-Amino-3-hydroxybenzoic acid

Melting point :211-215 °C (lit.)
Boiling point :385.7±37.0 °C(Predicted)
Density :1.028
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
solubility :DMSO (Slightly), Methanol (Slightly)
pka :4.74±0.10(Predicted)
form :Crystalline Powder
color :Yellow-brown to brown
Water Solubility :Soluble in chloroform, and aqeous ethanol, water (Partly miscible)
BRN :509859
Major Application :peptide synthesis
InChI :InChI=1S/C7H7NO3/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,9H,8H2,(H,10,11)
InChIKey :NFPYJDZQOKCYIE-UHFFFAOYSA-N
SMILES :C(O)(=O)C1=CC=C(N)C(O)=C1
CAS DataBase Reference :2374-03-0(CAS DataBase Reference)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.