General

Synonyms: furantoin, chemiofuran, 1-((5-nitrofurfurylidene)amino)hydantoin, parfuran, urolong, urodil, numerous other non-systematic names
Molecular formula: C₈H₆N₄O₅
CAS No: 67-20-9
EC No:

Physical data

Appearance: lemon yellow crystalline powder
Melting point: ca. 268 C (decomposes)
Boiling point:
Vapour density:
Vapour pressure:
Density (g cm^-3):
Flash point:
Explosion limits:
Autoignition temperature:
Water solubility: negligible
 

Stability

Stable, but light-sensitive. Combustible. Incompatible with strong oxidizing agents, strong alkalies, strong acids. Decomposes upon contact with most metals other than stainless steel and aluminium.

Toxicology

Poison. Harmful if swallowed or inhaled. Experimental teratogen, neoplastigen. May act as a human mutagen. May cause reproductive defects.

Toxicity data
(The meaning of any abbreviations which appear in this section is given here.)
IPR-MUS LD50 100 mg kg^-1
ORL-HMN TDLO 80 mg kg^-1
ORL-WMN TDLO 24 mg kg^-1
ORL-CKN TDLO 53 mg kg^-1
ORL-RAT LD50 604 mg kg^-1

Risk phrases
(The meaning of any risk phrases which appear in this section is given here.)
R20 R22.

Transport information

Personal protection

Safety glasses, gloves, good ventilation.

Safety phrases
(The meaning of any safety phrases which appear in this section is given here.)

[Return to Physical & Theoretical Chemistry Lab. Safety home page.]

This information was last updated on July 9, 2005. We have tried to make it as accurate and useful as possible, but can take no responsibility for its use, misuse, or accuracy. We have not verified this information, and cannot guarantee that it is up-to-date.