2,2',5,5'-Tetrachlorobenzidine CAS 15721-02-5

Introduction:Basic information about 2,2',5,5'-Tetrachlorobenzidine CAS 15721-02-5, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

2,2',5,5'-Tetrachlorobenzidine Basic information

Product Name:2,2',5,5'-Tetrachlorobenzidine
Synonyms:4-(4-aminophenyl)-N,N,2,3-tetrachloroaniline;4,4'-diamino-5,5',2,2'-tetrachlorobiphenyl;2,2,5,5-TETRACHLORO-4,4-DIAMINOBIPHENYL;2,2,5,5-TETRACHLOROBENZIDINE 98+%;4,4'-DIAMINO-2,2',5,5'-TETRACHLOROBIPHENYL;2,2',5,5'-Tetrachlorobiphenyl-4,4'-diamine;TCB;Benzidine, 2,2',5,5'-tetrachloro-
CAS:15721-02-5
MF:C12H8Cl4N2
MW:322.02
EINECS:239-815-3
Product Categories:Biphenyl & Diphenyl ether;Intermediates of Dyes and Pigments
Mol File:15721-02-5.mol

2,2',5,5'-Tetrachlorobenzidine Chemical Properties

Melting point 135-140 °C(lit.)
Boiling point 477.67°C (rough estimate)
density 1.5309 (rough estimate)
refractive index 1.6000 (estimate)
storage temp. -70°C
solubility soluble in Methanol
pka1.58±0.13(Predicted)
form powder to crystal
color Light yellow to Yellow to Orange
biological sourcehuman
Water Solubility water: soluble
CAS DataBase Reference15721-02-5(CAS DataBase Reference)
IARC3 (Vol. 27, Sup 7) 1987
EPA Substance Registry System[1,1'-Biphenyl]-4,4'-diamine, 2,2',5,5'-tetrachloro- (15721-02-5)

Safety Information

Hazard Codes T
Risk Statements 61
Safety Statements 53-45
WGK Germany 3
RTECS DD1751000
TSCA TSCA listed
HS Code 2921.59.8090

2,2',5,5'-Tetrachlorobenzidine Usage And Synthesis

UsesPKM1active human has been used in:
  • cell-based kinase assay to study the ability of a compound to inhibit the kinase activity of PKM1.
  • oxidative stress experiments on PKM2.
  • Co-immunoprecipitation (Co-IP) to determine pyruvate kinase M2 (PKM2) as a novel direct binding partner of phosphoserine aminotransferase 1 (PSAT1).
DefinitionChEBI: 2,2',5,5'-Tetrachlorobenzidine is a member of biphenyls and a dichlorobenzene.
Production Methods2,2' ,5,5' -Tetrachlorobenzidine is made by the reduction of 2,5-dichloronitrobenzene with zinc dust and sodium hydroxide solution. The subsequent rearrangement is carried out using sulfuric acid or hydrochloric acid. The dihydrochloride melts at 230 ℃. Tetrachlorobenzidine is marketed as the free base and is used to produce yellow pigments.
Biological ActivityPyruvate kinase (PK) catalyzes the dephosphorylation of phosphoenolpyruvate(PEP) into pyruvate. It is also involved in glycolysis by releasing ATP.Allosteric effects and intracellular signal transduction regulate the enzymaticactivity of PKM1. PKM1 is involved in several biological processes such asmetabolic reprogramming, and innate and acquired immune response. Itparticipates in protein interactions, protein synthesis, glycolysis, andintranuclear signal transduction.
Safety ProfileSuspected carcinogen with experimental carcinogenic and tumorigenic data. When heated to decomposition it emits very toxic fumes of NO, and Cl-.

2,2',5,5'-Tetrachlorobenzidine Preparation Products And Raw materials

Preparation ProductsPigment Yellow 81
2,2',4-Tris(2-chlorophenyl)-5-(3,4-dimethoxyphenyl)-4',5'-diphenyl-1,1'-biimidaz
2,2',5,5'-TETRACHLOROBIPHENYL CAS 35693-99-3
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