4,4'-Bis(dimethylamino)triphenylmethane
[CAS# 129-73-7]

Identification

• Classification: Biochemical >> Biochemical reagent >> Biological dye
• Name: 4,4'-Bis(dimethylamino)triphenylmethane
• Synonyms: C.I. Basic Green 4, leuco base; Leucomalachite green; Malachite green leuco; Malachite green leuco base; NSC 36379
• Molecular Formula: C₂₃H₂₆N₂
• Molecular Weight: 330.47
• CAS Registry Number: 129-73-7
• EC Number: 204-961-9

Properties

• Solubility: Insoluble (1.2E^-4 g/L) (25 °C), Calc.^*
• Density: 1.070±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 105.5-107 °C^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Wang, Xiao

Safety Data

• Hazard Symbols: GHS08 Warning
• Risk Statements: H351-H341
• Safety Statements: S60;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Serious eye damage	Eye Dam.	1	H318
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Carcinogenicity	Carc.	2	H351
Reproductive toxicity	Repr.	2	H361
Germ cell mutagenicity	Muta.	2	H341

• Transport Information: UN 3077 9 / PGIII