128-95-0

Name	1,4-Diamino anthraquinone
CAS	128-95-0
EINECS(EC#)	204-922-6
Molecular Formula	C14H10N2O2
MDL Number	MFCD00001224
Molecular Weight	238.24
MOL File	128-95-0.mol

Chemical Properties

Appearance	Violet powder
Melting point	265-269 °C(lit.)
Boiling point	380.84°C (rough estimate)
density	1.44 g/cm3 (20℃)
vapor pressure	<1 hPa (25 °C)
refractive index	1.6500 (estimate)
Fp	340 °C
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	Soluble in benzene, pyridine, the difficulties, slightly soluble in hot aniline acetate, ethanol.
form	Solid
pka	1.17±0.20(Predicted)
color	Dark Violet to Black
PH	7 (H2O, 20℃)
Water Solubility	228.7ug/L(25 ºC)
BRN	2216556
Stability:	Light Sensitive
LogP	3.000
CAS DataBase Reference	128-95-0(CAS DataBase Reference)
NIST Chemistry Reference	1,4-Diaminoanthraquinone(128-95-0)
EPA Substance Registry System	128-95-0(EPA Substance)

Safety Data

Risk Statements	R22:Harmful if swallowed. less more
Safety Statements	S22:Do not breathe dust . S36/37:Wear suitable protective clothing and gloves . less more
WGK Germany	2
RTECS	CB6300000
Autoignition Temperature	>400 °C
TSCA	Yes
HS Code	29223990
Toxicity	LD50 orally in Rabbit: 5790 mg/kg less more

Raw materials And Preparation Products

Hazard Information

Chemical Properties

Violet powder

Uses

As an anthraquinone derivative, 1,4-Diamino anthraquinone is a potent and selective protein kinase CK1 delta inhibitor. Studies suggest that it has potential solar cell applications. 1,4-Diamino anthraquinone can be used in studies as a potential competitive non-peptidic inhibitor of HIV-1 proteinase.

Synthesis

1,4-Diaminoanthraquinone is prepared by hydroxyl replacement from 1,4-dihydroxyanthraquinone via the 2,3-dihydro compound and subsequent oxidation of the intermediate 2,3-dihydro-1,4- diaminoanthraquinone .

Properties and Applications

Standard	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
Standard	Fading	Stain	Light Fastness	Fading	Stain	Fading	Stain
ISO	4	2	5-6	5	5	4-5	5

Purification Methods

Purify the anthraquinone by thin-layer chromatography on silica gel using toluene/acetone (9:1) as eluent. The main band is scraped off and extracted with MeOH. The solvent is evaporated, and the quinone is dried in a drying pistol [Land et al. J Chem Soc, Faraday Trans 1 72 2091 1976]. It crystallises from EtOH (m 269o) in dark violet crystals. Store it in sealed ampoules in the dark. [Beilstein 14 H 197, 14 II 113, 14 III 437, 14 IV 458.]

Spectrum Detail

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