Xylidine ponceau 2R

  • Food Red 5
  • Acid Red 26
  • Naphthalene Lake Scarlet R
  • Paper Red HRR
  • Xylidine Red
  • 4-(2,4-Dimethylphenylazo)-3-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt
Formula
C18H16N2O7S2.2Na
Structure
Description
Dark red crystals or red powder.
Uses
Food & drug colorants.

Registry Numbers and Inventories.
CAS
3761-53-3
EC (EINECS/ELINCS)
223-178-3
RTECS
QJ6825000
RTECS class
Tumorigen; Mutagen
Beilstein/Gmelin
5709350
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C18H14N2O7S2*2Na
Formula mass
480.44

Hazards and Protection.
Storage
Store in a cool, dry place. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Use only in a chemical fume hood. Wash clothing before reuse. Discard contaminated shoes.
Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Wash area with soap and water. Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire potential
This material is probably combustible.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Carcinogin
I-2B, CP65
Exposure effects
May cause cancer according to animal studies. Chronic exposure may cause liver damage. Potential cancer hazard.
   Ingestion
Harmful if swallowed. May cause irritation of the digestive tract.
   Inhalation
Harmful if inhaled. May cause respiratory tract irritation. May cause irritation of the mucous membranes.
   Skin
May cause skin irritation. Harmful if absorbed through the skin. Exposure may cause dermatitis and sensitization.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Discard contaminated clothing in a manner which limits further exposure.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.