2,4-DIAMINOAZOBENZENE

CAS NO.：495-54-5
Empirical Formula: C12H12N4
Molecular Weight: 212.25
MDL number: MFCD00044529
EINECS: 207-803-7
SAFETY DATA SHEET (SDS)
Update Date: 2023-05-15 10:44:02

What is 2,4-DIAMINOAZOBENZENE?

The Uses of 2,4-DIAMINOAZOBENZENE

Dyeing silk and cotton. Biological stain.

Preparation

aniline diazotization, and Benzene-1,3-diamine coupling.

Definition

ChEBI: Chrysoidine free base is a member of azobenzenes.

Flammability and Explosibility

Not classified

Properties and Applications

dark yellow orange. Melting point is 118 ~ 118.5 ℃. Soluble in water for yellow orange, soluble in ethanol and Cellosolve, slightly soluble in acetone, insoluble in benzene. In concentrated sulfuric acid to yellow, to orange after diluted; In nitric acid for orange solution.

Standard	Light Fastness	Heat-resistant(℃)		water	Sodium Carbonate(5%)	Hydrochloric acid(5%)
		Melting point	Stable
ISO	Poor	118 ~ 118.5	90≥194 Sublimation	Poor	Poor	Dissolve

Properties of 2,4-DIAMINOAZOBENZENE

Melting point:	117～123℃
Boiling point:	342.09°C (rough estimate)
Density	1.1390
vapor pressure	0Pa at 25℃
refractive index	1.5000 (estimate)
solubility	Acetonitrile (Slightly), Chloroform (Slightly), Methanol (Slightly)
form	Solid
pka	3.11±0.10(Predicted)
color	Red to Very Dark Brown
Water Solubility	348.393mg/L at 30℃
CAS DataBase Reference	495-54-5
EPA Substance Registry System	C.I. Solvent Orange 3 (495-54-5)

Safety information for 2,4-DIAMINOAZOBENZENE

Signal word	Danger
Pictogram(s)	Exclamation Mark Irritant GHS07 Health Hazard GHS08 Environment GHS09
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H340:Germ cell mutagenicity H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P201:Obtain special instructions before use. P202:Do not handle until all safety precautions have been read and understood. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P281:Use personal protective equipment as required. P321:Specific treatment (see … on this label). P330:Rinse mouth. P362:Take off contaminated clothing and wash before reuse. P391:Collect spillage. Hazardous to the aquatic environment P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P308+P313:IF exposed or concerned: Get medical advice/attention. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P405:Store locked up. P501:Dispose of contents/container to..…