Picrylsulfonic acid solution

SIAL/92822 - 1 M in H₂O

Synonym: 2,4,6-Trinitrobenzenesulfonic acid solution; TNBS

CAS Number: 2508-19-2
Empirical Formula (Hill Notation): C₆H₃N₃O₉S
Molecular Weight: 293.17
MDL Number: MFCD00064382
Linear Formula: C₆H₃N₃O₉S
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-92822-10ML	10 mL	DISCONTINUED
45-92822-50ML	50 mL	DISCONTINUED

Properties
Descriptions
Safety Info.
Basic Data

ε (extinction coefficient)	≤0.85 at 340 nm
concentration	1 M in H₂O
density	1.14 g/mL at 20 °C
form	liquid
InChI	1S/C6H3N3O9S/c10-7(11)3-1-4(8(12)13)6(19(16,17)18)5(2-3)9(14)15/h1-2H,(H,16,17,18)
InChI key	NHJVRSWLHSJWIN-UHFFFAOYSA-N
Quality Level	200
shipped in	dry ice
SMILES string	OS(=O)(=O)c1c(cc(cc1[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O
solubility	water: soluble at 20 °C
storage temp.	−20°C

Application:	Hydrophilic modifying reagent. Derivatives with amino compounds can be regenerated with hydrazine.
Application:	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.
Disclaimer:	decomposes when stored at temperatures ≥0°C with precipitate formation (picric acid)
Other Notes:	Sales restrictions may apply

Symbol	GHS02,GHS05,GHS07
Signal word	Danger
Hazard statements	H207 - H302 - H314 - H317
Precautionary statements	P210 - P212 - P230 - P233 - P280 - P303 + P361 + P353 - P305 + P351 + P338 - P370 + P380 + P375 - P501
Hazard Codes	T
Risk Statements	1-25-34-43
Safety Statements	26-35-36/37/39-45
RIDADR	UN3379 - DOT UN3265_PG_1 class 3 - PG 1 - Desensitized explosive
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Density	1.14 g/mL at 20 °C
Storage Temp.	−20°C
UNSPSC	12352005

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