Solvent Orange 1
[CAS 2051-85-6]

Identification

• Classification: Biochemical >> Biochemical reagent >> Biological dye
• Name: Solvent Orange 1
• Synonyms: C.I. 11920; Sudan Orange G; p-Phenylazoresorcinol
• Molecular Formula: C₁₂H₁₀N₂O₂
• Molecular Weight: 214.22
• CAS Registry Number: 2051-85-6
• EC Number: 218-131-9

Properties

• Melting point: 143-146 °C

Safety Data

• Hazard Symbols: Xi
• Risk Statements: R36/37/38
• Safety Statements: S26;S36

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302