(4-nitrophenyl)thiourea

(4-nitrophenyl)thiourea Structure
(4-nitrophenyl)thiourea structure
Common Name (4-nitrophenyl)thiourea
CAS Number 3696-22-8 Molecular Weight 197.21400
Density 1.524g/cm3 Boiling Point 365.5ºC at 760 mmHg
Molecular Formula C7H7N3O2S Melting Point 206 °C (dec.)(lit.)
MSDS Chinese USA Flash Point 174.9ºC
Symbol GHS06
GHS06
Signal Word Danger

Chromogenic anion sensors.

Chem. Soc. Rev. 32(4) , 192-202, (2003)

Chromogenic sensors for anions generally consist of two parts: anion receptors and chromophores. In this review, 6 types of chromogenic anion sensors are described, namely, NH-based hydrogen bonding, Lewis acid, metal-ion template, transition metal complexes,...