Key Documents

4-Chloro-7-sulfobenzofurazan ammonium salt

Name: 4-Chloro-7-sulfobenzofurazan ammonium salt
Brand: SIGMA

Powder

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:

81377-14-2

Molecular Weight:

251.65

NACRES:

NA.47

PubChem Substance ID:

24892366

UNSPSC Code:

12171500

MDL number:

MFCD00038995

Beilstein/REAXYS Number:

5200152

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Properties

Product Name

4-Chloro-7-sulfobenzofurazan ammonium salt,

assay

>98%

Quality Segment

200

form

powder

color

brown, light yellow

mp

>300 °C (lit.)

solubility

water: 50 mg/mL, clear, dark yellow

fluorescence

λ_ex 360 nm; λ_em 410 nm (pH 8.5), λ_ex 383 nm; λ_em 528 nm (Reaction product)

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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

Description

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This Item	M5760	F4383	46640
Sigma-Aldrich C1154 4-Chloro-7-sulfobenzofurazan ammonium salt	Sigma-Aldrich M5760 4-(4-Methoxybenzylamino)-7-nitrobenzofurazan	Sigma-Aldrich F4383 7-Fluorobenzofurazan-4-sulfonic acid ammonium salt	Supelco 46640 7-Fluorobenzofurazan-4-sulfonic acid ammonium salt
color brown, light yellow	color orange to red	color -	color -
fluorescence λ_ex 360 nm; λ_em 410 nm (pH 8.5), λ_ex 383 nm; λ_em 528 nm (Reaction product)	fluorescence -	fluorescence λ_ex 380 nm; λ_em 515 nm	fluorescence λ_ex 385 nm; λ_em 524 nm in 0.1 M borate pH 9.5 (after derivatization with glutathione)
solubility water: 50 mg/mL, clear, dark yellow	solubility DMSO:methanol (1:1): 50 mg/mL, clear, orange	solubility -	solubility -
form powder	form powder	form -	form -
Quality Level 200	Quality Level 100	Quality Level 200	Quality Level 100
storage temp. room temp	storage temp. −20°C	storage temp. −20°C	storage temp. 2-8°C

pictograms

GHS07

signalword

Warning

hcodes

H315,H319,H335

pcodes

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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