Melting point :147 °C (dec.)(lit.)
alpha :111 º (C=5, 2N NaOH)
Boiling point :191.38°C (rough estimate)
Density :1.3516 (rough estimate)
refractive index :1.5110 (estimate)
storage temp. :Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
solubility :water: soluble50mg/mL, clear, colorless to light yellow
form :powder
pka :pKa 4.5 (Uncertain)
color :white to off-white
optical activity :[α]20/D +115.0±5.0°, c = 2% in H2O
Water Solubility :SOLUBLE
Sensitive :Air Sensitive
Merck :14,2751
BRN :80798
BCS Class :3/1
Stability :Stable for 2 years from date of purchase as supplied. Solutions in distilled water may be stored at -20°C for up to 1 month.
CAS DataBase Reference :68-41-7(CAS DataBase Reference)
NIST Chemistry Reference :Cycloserine(68-41-7)

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:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection.