Synonym:
2,4,6-Trinitrobenzenesulfonic acid solution,
TNBS
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CAS Number 2508-19-2
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Empirical Formula (Hill Notation) C6H3N3O9S
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Molecular Weight 293.17
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Beilstein Registry Number 572358
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MDL number MFCD00064382
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PubChem Substance ID 329770176
Properties:
Related Categories |
Analytical Reagents,
Analytical/Chromatography,
Application Specific Reagents,
Derivatization Reagents,
Derivatization Reagents HPLC,
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InChI Key
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NHJVRSWLHSJWIN-UHFFFAOYSA-N
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concentration
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1 M in H2O
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density
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1.14 g/mL at 20 °C
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absorption
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ε/340 nm ≤6.5 × 102 M-1cm-1
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shipped in
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dry ice
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storage temp.
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−20°C
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Description:
Caution
decomposes when stored at temperatures ≥0°C with precipitate formation (picric acid)
Other Notes
Sales restrictions may apply
Application
Hydrophilic modifying reagent. Derivatives with amino compounds can be regenerated with hydrazine.
Picrylsulfonic acid (2,4,6-Trinitrobenzenesulfonic acid solution, TNBS) may be used in studies on the mechanisms of intracellular pH regulation. TNBS is used to induce inflammatory bowel disease (IBD)/colonic inflammation for studies on its mechanism and treatment.
Safety:
Symbol


GHS05, GHS07
Hazard statements
H302-H314-H317
Precautionary statements
P280-P305 + P351 + P338-P310
Supplemental Hazard Statements
Explosive when dry.
Personal Protective Equipment
Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
RIDADR
UN3379 - DOT UN3265_PG_1 class 3 - PG 1 - Desensitized explosive, liquid, n.o.s. (Diethyl Azodicarboxylate 40% solution in toluene)