Melting point :282-286 °C (dec.) (lit.)
Boiling point :190-200°C/0.1mmHg
Density :1.4593 (estimate)
storage temp. :2-8°C
solubility :H₂O: 10 mg/mL, clear
form :powder
pka :pKa 8.0±0.1 (H2O) (Uncertain);3.0±0.1(H2O) (Uncertain)
color :white
PH :4.3-5.3 (10g/l, H2O, 20℃)
Water Solubility :12.2 g/L 20 ºC
Sensitive :Air Sensitive
Merck :14,4181
BRN :127172
Henry's Law Constant :5.8×10⁴ mol/(m³Pa) at 25℃, HSDB (2015)
Stability :Stable. Light sensitive. Combustible. Incompatible with strong oxidizing agents, strong bases.
Major Application :diagnostic assay manufacturing
hematology
histology InChI :1S/C4H3FN2O2/c5-2-1-6-4(9)7-3(2)8/h1H,(H2,6,7,8,9)
InChIKey :GHASVSINZRGABV-UHFFFAOYSA-N
SMILES :FC1=CNC(=O)NC1=O
CAS DataBase Reference :51-21-8(CAS DataBase Reference)
IARC :3 (Vol. 26, Sup 7) 1987
NIST Chemistry Reference :2,4-Pyrimidinedione, 5-fluoro-(51-21-8)
EPA Substance Registry System :5-Fluorouracil (51-21-8)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501 H351 Suspected of causing cancer Carcinogenicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501
Precautionary statements:	P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.