Mercurochrome

  • Sodium mercurescein
  • Asceptichrome
  • Supercromer orto
  • Cinfacromin
  • Disodium 2,7-dibromo-4-(hydroxymercuri)fluorescein
  • Sodium 2,7-dibromo-4-hydroxymercurifluorescein
Formula
C20H8Br2HgNa2O6
Structure
Description
Green crystals.
Uses
A local antiseptic.

Registry Numbers and Inventories.
CAS
129-16-8
EC (EINECS/ELINCS)
204-933-6
RTECS
LM5250000
RTECS class
Drug; Mutagen; Human Data
UN (DOT)
2026
Merck
12,5914
Beilstein/Gmelin
1271645 (G)
Swiss Giftliste 1
G-9429
Canada DSL/NDSL
DSL
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C20H8Br2HgNa2O6
Formula mass
750.65
Melting point, °C
300

Hazards and Protection.
Storage
Store in a tightly closed container. Poison room locked. Store in a cool, dry area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Use only in a chemical fume hood. Discard contaminated shoes.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
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
Vacuum or sweep up material and place into a suitable disposal container. Do not flush into a sewer. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Acids, alkaloid salts, strong oxidizing agents, strong acids.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen bromide, mercury/mercury oxides.

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. Runoff from fire control or dilution water may cause pollution. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
3
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
2
Exposure effects
There is a danger of cumulative effects. Chronic exposure to mercury compounds may produce immunologic glomerular disease.
   Ingestion
May be fatal if swallowed. May cause central nervous system depression. May cause excessive salivation and loosening of the teeth. May cause nausea, vomiting, and diarrhea, possibly with blood.
   Inhalation
May be fatal if inhaled. May produce general weakness, vomiting, diarrhea, chest pains, coughing, shortness of breath, and cardiac insufficiency. Causes irritation of the mucous membrane and upper respiratory tract.
   Skin
May be fatal if absorbed through the skin. May cause irritation and dermatitis.
   Eyes
May cause eye irritation. May cause conjunctivitis.

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 breathing is difficult, give oxygen. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
   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.
UN number
2026
Response guide
Hazard class
6.1
Packing Group
I; II; III