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HomeProduct name listN,N,N',N'-TETRAMETHYLBENZIDINE

N,N,N',N'-TETRAMETHYLBENZIDINE

  • CAS NO.:366-29-0
  • Empirical Formula: C16H20N2
  • Molecular Weight: 240.34
  • MDL number: MFCD00008310
  • EINECS: 206-676-5
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-06-08 17:06:39
N,N,N',N'-TETRAMETHYLBENZIDINE Structural

What is N,N,N',N'-TETRAMETHYLBENZIDINE?

Chemical properties

solid

Synthesis Reference(s)

Tetrahedron Letters, 13, p. 2193, 1972 DOI: 10.1016/S0040-4039(01)84803-6

Safety Profile

Mutation data reported. Whenheated to decomposition it emits toxic vapors of NOx.

Purification Methods

Crystallise the benzidine from EtOH or pet ether, then from pet ether/*benzene, and sublime it in a vacuum. [Guarr et al. J Am Chem Soc 107 5104 1985.] Dry it in vacuo in a drying pistol, or a vacuum line. It has m 195-196o after sublimation. [Beilstein 13 H 221, 13 I 61, 13 II 97, 13 III 429, 13 IV 368.]

Properties of N,N,N',N'-TETRAMETHYLBENZIDINE

Melting point: 193-195 °C(lit.)
Boiling point: 373.06°C (rough estimate)
Density  1.0485 (rough estimate)
refractive index  1.5519 (estimate)
pka 6.14±0.24(Predicted)
form  Fine Powder
color  Brownish
Stability: Stable. Incompatible with acids, acid chlorides, acid anhydrides, oxidizing agents.
CAS DataBase Reference 366-29-0(CAS DataBase Reference)
EPA Substance Registry System [1,1'-Biphenyl]-4,4'-diamine, N,N,N',N'-tetramethyl- (366-29-0)

Safety information for N,N,N',N'-TETRAMETHYLBENZIDINE

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for N,N,N',N'-TETRAMETHYLBENZIDINE

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