analytical standard
Synonym(s): 4-(2-Hydroxy-1-naphthylazo)benzenesulfonic acid sodium salt; Acid Orange 7; Acid Orange A; Orange II; Tropaeolin 000 No. 2
Empirical Formula: C16H11N2NaO4S
Formula Weight: 350.32
Linear Formula: C16H11N2NaO4S
MDL Number: MFCD00011657
Purity: ≥98.0% (HPLC)
Beilstein Registry Number: 3898201
RTECS No.: DB7084000
Signal Word: Warning
Hazard statements: H315-H319-H335
Precautionary statements: P261-P305 + P351 + P338
Hazard Codes (Europe) : Xi
Risk Statements (Europe): 36/37/38
Safety Statements (Europe): 26
WGK Germany: 3