43180
Fluka

2,2-Diphenyl-1-picrylhydrazyl

technical, ≥85% (CHN)

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Synonym

1,1-Diphenyl-2-picrylhydrazyl radical

2,2-Diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl

DPPH

Molecular Formula

C₁₈H₁₂N₅O₆

Molecular Weight

394.32

CAS Number

1898-66-4

Beilstein Registry Number

1846081

MDL number

MFCD00007231

EG/EC Number

217-591-8

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Descriptions

Other Notes

Stable radical; reagent for the quantitative determination of aliphatic thiols by indirect spetrophotometry¹

Properties

grade

technical

assay

≥85% (CHN)

total impurities

<10 ppm benzene

ign. residue

≤5%

~135 °C (dec.)(lit.)

storage temp.

2-8°C

References

Cited Reference

1. D.B. Hunsaker, G.H. Schenk Talanta 30, 475, (1983)

Merck

Merck 13,3362

Beilstein

Beil. 15,IV,1210

reference

Aldrich MSDS 1, 830:C / Corp MSDS 1 (1), 1465:D / FT-IR 2 (2), 2342:B / FT-IR 1 (1), 1388:B / IR-Spectra (3), 841:F / IR-Spectra (2), 737:C / RegBook 1 (1), 1605:F / Sax 6, 1240 / Sigma FT-IR 1 (2), 129:B / Structure Index 1, 250:E:3

Safety

Hazard Codes

Risk Statements

42/43

Safety Statements

22-36/37-45

WGK Germany

RTECS

MW3250000