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92824

Sigma-Aldrich

Picrylsulfonic acid solution

purum, ~1% in DMF

Synonym(s):

2,4,6-Trinitrobenzenesulfonic acid solution, TNBS

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About This Item

Empirical Formula (Hill Notation):
C6H3N3O9S
CAS Number:
2508-19-2
Molecular Weight:
293.17
Beilstein:
572358
MDL number:
MFCD00064382
UNSPSC Code:
12352200

grade

purum

concentration

~1% in DMF

refractive index

n20/D 1.431

storage temp.

2-8°C

SMILES string

OS(=O)(=O)c1c(cc(cc1[N+]([O-])=O)[N+]([O-])=O)[N+]([O-])=O

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

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Application

Hydrophilic modifying reagent. Derivatives with amino compounds can be regenerated with hydrazine.

Other Notes

Reagent used in a micro-test for detecting incomplete coupling in solid-phase peptide synthesis

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 1B - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

136.4 °F - closed cup

Flash Point(C)

58 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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A new micro-test for the detection of incomplete coupling reactions in solid-phase peptide synthesis using 2,4,6-trinitrobenzenesulphonic acid.
W S Hancock et al.
Analytical biochemistry, 71(1), 260-264 (1976-03-01)

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