Melting point :132-134 °C (dec.)(lit.)
Boiling point :255.48°C (rough estimate)
Density :1.2539 (rough estimate)
refractive index :1.4570 (estimate)
FEMA :4660 | HYDROXY(4-HYDROXY-3-METHOXYPHENYL)ACETIC ACID
storage temp. :Sealed in dry,2-8°C
solubility :H₂O: ~50 mg/mL
form :powder
pka :3.35±0.10(Predicted)
color :white to off-white
Stability :Hygroscopic
CAS DataBase Reference :3695-24-7(CAS DataBase Reference)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. 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. P321 Specific treatment (see … on this label). P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P362 Take off contaminated clothing and wash before reuse.