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78411

Sigma-Aldrich

o-Phenylenediamine

for fluorescence, free base

Synonym(s):

1,2-Diaminobenzene, 1,2-Phenylenediamine, OPD

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About This Item

Empirical Formula (Hill Notation):
C6H8N2
CAS Number:
95-54-5
Molecular Weight:
108.14
Beilstein:
606074
EC Number:
202-430-6
MDL number:
MFCD00007721
UNSPSC Code:
12352200
PubChem Substance ID:
329768145

grade

for fluorescence

vapor density

3.7 (vs air)

vapor pressure

0.01 mmHg ( 25 °C)

form

tablet

concentration

20 mg/tablet (~45 mg)

bp

256-258 °C

mp

100-102 °C

solubility

H2O: 1 tablet/10 mL, clear, colorless

storage temp.

2-8°C

SMILES string

Nc1ccccc1N

InChI

1S/C6H8N2/c7-5-3-1-2-4-6(5)8/h1-4H,7-8H2

InChI key

GEYOCULIXLDCMW-UHFFFAOYSA-N

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Other Notes

Oxidation to 2,3-diaminophenazine; Determination of urinary oxalate by HPLC; Fluorescent detection of pyruvate

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Eye Irrit. 2 - Muta. 2 - Skin Sens. 1

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

276.8 °F - closed cup

Flash Point(C)

136 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
1399477
1319493
1198950
1165922
1164478

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Determination of urinary oxalate by high-performance liquid chromatography.
H Hughes et al.
Analytical biochemistry, 119(1), 1-3 (1982-01-01)
L.D. Buckberry et al
Journal of Liquid Chromatography, 16, 3073-3073 (1993)
P J Tarcha et al.
Analytical biochemistry, 165(1), 230-233 (1987-08-15)
NMR and mass spectroscopic evidence has been obtained which indicates that the product of the oxidation of o-phenylenediamine by hydrogen peroxide, uncatalyzed or catalyzed by horseradish peroxidase, is 2,3-diaminophenazine. These results settle disparate literature descriptions. The process is most likely
Hai-Long Wang et al.
Acta tropica, 137, 58-66 (2014-05-13)
Nasal vaccination is an effective therapeutic regimen for preventing certain infectious diseases. The mucosal immune response is important for resistance to Toxoplasma gondii infection. In this study, we evaluated the immune responses elicited in BALB/c mice by nasal immunisation with
Robert D Inman et al.
Arthritis research & therapy, 11(1), R19-R19 (2009-02-11)
We have previously observed that Brown Norway (BN) rats display a relative resistance to experimental Chlamydia-induced arthritis. In the present study, we examine an environmental toxin, mercuric chloride (HgCl2), as a modulator of this innate resistance to arthritis. To assess
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