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CAS RN: 1787-61-7 | Product Number: E0214

Eriochrome Black T

  • 1-(1-Hydroxy-2-naphthylazo)-6-nitro-2-naphthol-4-sulfonic Acid Sodium Salt
  • Mordant Black 11
5   ≥20 

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Product Number E0214
Molecular Formula / Molecular Weight C__2__0H__1__2N__3NaO__7S = 461.38  
Physical State (20 deg.C) Solid
CAS RN 1787-61-7
Reaxys Registry Number 7510034
PubChem Substance ID 87569497
SDBS (AIST Spectral DB) 12926
Merck Index (14) 3667
Colour Index 14645
MDL Number


Appearance Black powder to crystaline
Absorbance min. 0.400(10 mg/L, pH9.0, 618.0 to 622.0 nm)
Drying loss max. 7.0 %
Sensitiveness Turn Pale Red Purple with Zn(1 m mol/L) and turn Pale Blue by adding EDTA 2Na
Properties (reference)
Solubility in water Practically insoluble
Solubility (very slightly) Ethanol
Solubility (insoluble in) Ether
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws: / Compliance with laws, Regulations
Enzyme Commission 217-250-3
RTECS# QK2197000
Transport Information:
HS Number 3204120090
PubMed Literature

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