Picric acid

moistened with water, ≥98%

2,4,6-Trinitrophenol, PA
Linear Formula:
CAS Number:
Molecular Weight:
Colour Index Number:
Beilstein/REAXYS Number:
MDL number:
PubChem Substance ID:

Quality Level

vapor density

7.9 (vs air)

vapor pressure

1 mmHg ( 195 °C)




powder or crystals (with a top layer of Liquid)


≥35% water

expl. lim.

0.01 %


122-123 °C (dried material) (lit.)


alcohol: 1 (g/12 mL)(lit.)
benzene: 1 g/10 mL
chloroform: 1 (g/35 mL)
diethyl ether: 1 (g/65 mL)


1.763 g/cm3

SMILES string




InChI key


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General description

Picric acid (PA, 2,4,6-trinitrophenol) is a polynitrated aromatic acid. It is strongly acidic in nature. Since it readily dissolves in water, it can easily pollute the environment on exposure. Sensitive detection of PA by tris-imidazolium salt, fluorescent [3+2] self-assembled nanoscopic organic cage and rhodamine based sensors have been reported. It is widely used for the determination of various organic compounds by spectrophotometric and extractive spectrophotometric methods.


Picric acid was used in the quantitative determination of bisoprolol.
Picric acid has been used in the preparation of Bouin′s fixative and picric acid/sodium azide/multi-walled carbon nanotubes.


100, 500 g in poly bottle


FlameSkull and crossbones

Signal Word


Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN1344 - class 4.1 - PG 1 - Trinitrophenol, wetted

WGK Germany


Flash Point(F)

302.0 °F - closed cup

Flash Point(C)

150 °C - closed cup

Certificate of Analysis
Certificate of Origin
Mario Sanhueza et al.
Journal of visualized experiments : JoVE, (111)(111), doi:10-doi:10 (2016-05-24)
Most studies on morphogenesis rely on qualitative descriptions of how anatomical traits are affected by the disruption of specific genes and genetic pathways. Quantitative descriptions are rarely performed, although genetic manipulations produce a range of phenotypic effects and variations are...
Bijan Roy et al.
The Journal of organic chemistry, 78(3), 1306-1310 (2013-01-12)
Two new anthracene-functionalized fluorescent tris-imidazolium salts have been synthesized, characterized, and proven to be selective sensors for picric acid, which is a common constituent of many powerful explosives. Theoretical studies revealed an unusual ground-state electron transfer from picrate anion to...
Koushik Acharyya et al.
Chemical communications (Cambridge, England), 50(99), 15788-15791 (2014-11-06)
Dynamic covalent imine chemistry has been utilized to synthesize a fluorescent [3+2] self-assembled nanoscopic organic cage. The fluorescent nature of the reduced analogue of the cage was further exploited for the highly selective detection of the explosive picric acid (PA).
Alina-Diana Panainte et al.
Revista medico-chirurgicala a Societatii de Medici si Naturalisti din Iasi, 117(2), 520-524 (2013-12-18)
Bisoprolol is a drug belonging to beta blockers drugs used primarily for the treatment of cardiovascular diseases. A spectrophotometric method for quantitative determination of bisoprolol was developed based on the formation of a complex combination between bisoprolol and picric acid....
Preparation and evaluation of hybrid composites of chemical fuel and multi-walled carbon nanotubes in the study of thermopower waves.
Hwang H, et al.
Journal of Visualized Experiments, 98, e52818- e52818 (2015)

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