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26375

Sigma-Aldrich

4-Chloro-7-sulfobenzofurazan ammonium salt

for fluorescence, ≥99.0% (TLC)

Synonym(s):

4-Chloro-7-sulfobenz-2-oxa-1,3-diazole ammonium salt, 7-Chloro-2,1,3-benzoxadiazole-4-sulfonic acid ammonium salt, 7-Chloro-4-benzofurazansulfonic acid ammonium salt, SBF-Chloride

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About This Item

Linear Formula:
C6H3ClN2O4S · NH3
CAS Number:
Molecular Weight:
251.65
Beilstein/REAXYS Number:
5200152
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:

grade

for fluorescence

assay

≥99.0% (TLC)

mp

>300 °C (lit.)

fluorescence

λex 383 nm; λem 525 nm in 0.1 M borate pH 9.0 (after derivatization with glutathione)

SMILES string

N.OS(=O)(=O)c1ccc(Cl)c2nonc12

InChI

1S/C6H3ClN2O4S.H3N/c7-3-1-2-4(14(10,11)12)6-5(3)8-13-9-6;/h1-2H,(H,10,11,12);1H3

InChI key

QFHXPBLOMHGYOC-UHFFFAOYSA-N

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Other Notes

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Ammonium 4-chloro-7-sulfobenzofurazan: a new fluorigenic thiol-specific reagent.
J L Andrews et al.
Archives of biochemistry and biophysics, 214(1), 386-396 (1982-03-01)

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