ProSciTech Safety Data Sheets ProSciTech Pty Ltd · proscitech.com.au

SAFETY DATA SHEET

Gill's Modified EA Counterstain

Version 1Last reviewed 24 April 2026Catalogue: 26050-05, 26050-06, EMS26050-05, EMS26050-06

1. Identification

Product Identifiers

Product Name
Gill's Modified EA Counterstain
Other Names
Not available
Product Number(s)
26050-05, 26050-06, EMS26050-05, EMS26050-06
CAS Number
Not available.

Recommended use of the chemical and restriction on use

Laboratory chemicals, part of the <strong data-start="275" data-end="313">Papanicolaou (Pap) staining method. Their role is to provide contrast after nuclear staining

Company Details

ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au

Emergency Contact Details

ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au

2. Hazards Identification

Classification of the substance or mixture

  • GHS02 Flame
  • Substances and mixtures which, in contact with water, emit flammable gases 1 H260 In contact with water releases flammable gases, which may ignite spontaneously.
  • GHS08 Health hazard
  • Carcinogenicity 1A H350 May cause cancer. Specific target organ toxicity (single exposure) 2 H371 May cause damage to the central nervous system and the visual organs.

Label Elements

Flammable
Flammable
Health hazard
Health hazard
Signal Words
None
Hazard Statement(s)
  • Hazard-determining components of labelling:
  • Ethyl alcohol
  • Methyl Alcohol
  • In contact with water releases flammable gases which may ignite spontaneously.
  • May cause cancer.
  • May cause damage to the central nervous system and the visual organs.
Precautionary Statement(s)
  • Obtain special instructions before use.
  • Do not handle until all safety precautions have been read and understood.
  • Keep away from any possible contact with water, because of violent reaction and possible flash fire.
  • Handle and store contents under inert gas. Protect from moisture.
  • Do not breathe dust/fume/gas/mist/vapours/spray.
  • Wash thoroughly after handling.
  • Do not eat, drink, or smoke when using this product.
  • Wear protective gloves/protective clothing, eye protection/face protection.
  • If exposed or concerned: Get medical advice/attention.

Primary route(s) of entry

  • Primart source: Skin contact
  • Secondary Source: Inhalation, eye contact.

Human Health

Inhalation
Not available.
Ingestion
Not available.
Eyes
Not available.
Skin
Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.

Environment

  • In case of fire: Use CO₂, sand, extinguishing powder for extinction.
  • Store in a dry place. Store in a closed container.
  • Store locked up.
  • Dispose of contents/container in accordance with local/regional/national/international regulations.

3. Composition / Information on Ingredients

NameCAS No.Content (w/w)Classification
Ethyl alcohol64-17-580-100%Not Available
Methyl Alcohol67-56-11-5%Not Available
disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate17372-87-10.1-1%Not Available

4. First Aid Measures

Ingestion
If symptoms persist consult doctor.
Inhalation
  • Supply fresh air. If required, provide artificial respiration. Keep patient warm. Consult doctor if symptoms persist.
  • In case of unconsciousness place patient stably in side position for transportation.
Skin Contact
Generally the product does not irritate the skin.
Eye Contact
Rinse opened eye for several minutes under running water.
Other Information
Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident.

5. Firefighting Measures

Suitable extinguishing equipment

Fire
  • Use fire extinguishing methods suitable to surrounding conditions.
  • For safety reasons unsuitable extinguishing agents: Water
HAZCHEM
For safety reasons unsuitable extinguishing agents: Water.

Special protective equipment and precautions for fire fighters

Mouth respiratory protective device.

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures
Wear protective equipment. Keep unprotected persons away.
Environmental precautions
  • Dilute with plenty of water.
  • Do not allow to enter sewers/surface or ground water.
Methods and materials for containment and clean up
  • Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
  • Dispose contaminated material as waste according to item 13.
  • Ensure adequate ventilation.
  • Do not flush with water or aqueous cleansing agents.
  • Protective Action Criteria for Chemicals
  • PAC-1:
  • 64-17-5 Ethyl alcohol 1,800 ppm
  • 67-56-1 Methyl Alcohol 530 ppm
  • PAC-2:
  • 64-17-5 Ethyl alcohol 3300* ppm
  • 67-56-1 Methyl Alcohol 2,100 ppm
  • PAC-3:
  • 64-17-5 Ethyl alcohol 15000* ppm
  • 67-56-1 Methyl Alcohol 7200* ppm

7. Handling and Storage

Precautions for safe handling
  • Ensure good ventilation/exhaustion at the workplace.
  • Prevent formation of aerosols.
  • Information about protection against explosions and fires: Keep ignition sources away - Do not smoke.
Conditions for safe storage
  • Requirements to be met by storerooms and receptacles: No special requirements.
  • Information about storage in one common storage facility: Not required.
  • Further information about storage conditions: Keep receptacle tightly sealed.
  • Store in cool, dry conditions in well sealed receptacles.
  • Specific end use(s) No further relevant information available.

8. Exposure Controls / Personal Protection

Exposure Standards

MaterialTWA ppmTWA mg/m³STEL ppmSTEL mg/m³
64-17-5 Ethyl alcohol1000 ppm1900 mg/m³1000 ppm1900 mg/m³
67-56-1 Methyl Alcohol200 ppm260 mg/m³250 ppm325 mg/m³
Engineering controls
  • Keep away from foodstuffs, beverages and feed.
  • Wash hands before breaks and at the end of work.

Personal protective equipment

Eye and face protection
Goggles recommended during refilling.
Skin protection
  • The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
  • Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the chemical mixture.
  • Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
  • Material of gloves
  • The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer. As the product is a preparation of several substances, the resistance of the glove material can not be calculated in advance and has therefore to be checked prior to the application.
  • Penetration time of glove material
  • The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.
Body protection
Protective clothing.
Respiratory protection
In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use self-contained respiratory protective device.

9. Physical and Chemical Properties

General information

Appearance
Liquid coloured according to product specification.
Odour
Alcohol-like
pH
2.5 at 20 °C (68 °F)
Vapour Pressure
59hPa
Density
Not determined
Boiling Point
Undetermined
Melting Point
Undetermined
Solubility
Fully miscible
Specific Gravity of Density
Not determined
Flash Point
Not applicable
Flammable (Explosive) Limits
  • Lower: 3.5 Vol%
  • Upper: 15 Vol%
Ignition Temperature
425 °C
Formula
Not available

10. Stability and Reactivity

Reactivity
No further relevant information available.
Chemical stability
No decomposition if used according to specifications.
Possibility of hazardous reactions
Contact with water releases flammable gases.
Conditions to avoid
No further relevant information available.
Incompatible materials
No further relevant information available.

11. Toxicological Information

Acute effects
  • 67-56-1 Methyl Alcohol
  • Oral LD50 5628 mg/kg (rat)
  • Dermal LD50 15800 mg/kg (rabbit)
Eye contact
No irritating effect.
Skin contact
No irritant effect.
Ingestion
Not available.
Inhalation
No sensitising effects known.
Toxicity and irritation
  • The product shows the following dangers according to internally approved calculation methods for preparations: Harmful
  • Interactive effects No interactive effects between components are known.
  • Carcinogenic categories
  • IARC (International Agency for Research on Cancer)
  • 64-17-5 Ethyl alcohol 1
  • 5141-20-8 Light Green SF Yellowish 3
  • NTP (National Toxicology Program)
  • None of the ingredients is listed.
  • OSHA-Ca (Occupational Safety Health Administration)
  • None of the ingredients is listed.
  • Alternative sources for toxicological information
  • No non-standard sources for toxicological information where used

12. Ecological Information

Ecotoxicity
No further relevant information available.
Persistence and degradability
No further relevant information available.
Bioaccumulative potential
No further relevant information available.
Other adverse effects
  • Water hazard class 1: slightly hazardous for water.
  • Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.

13. Disposal Considerations

General information

  • Must not be disposed together with household garbage. Do not allow product to reach sewage system.
  • Disposal must be made according to official regulations.
  • Recommended cleansing agents: Water, if necessary together with cleansing agents.

14. Transport Information

ADG label required

Marine pollutant
Marine pollutant
Class 3 Flammable liquid
Class 3 Flammable liquid
HAZCHEM
For safety reasons unsuitable extinguishing agents: Water.
UN Number
UN1987
Proper shipping name
  • DOT Alcohols, n.o.s.
  • ADR 1987 ALCOHOLS, N.O.S.
  • IMDG ALCOHOLS, N.O.S., MARINE POLLUTANT
  • IATA ALCOHOLS, N.O.S.
Transport hazard class
  • Class 3 Flammable liquids.
  • Label 3
Packing group
II
Environmental hazard
  • Marine pollutant: Yes (DOT)
  • Symbol (fish and tree)
  • Special marking (ADR): Symbol (fish and tree)
Special precautions for users
Warning: Flammable liquids.
Additional information
Not available

15. Regulatory Information

Poisons Schedule Number
67-56-1 Methyl Alcohol S5, S6
Other Information
  • Sara
  • Section 355 (extremely hazardous substances):
  • None of the ingredients is listed.
  • Section 313 (Specific toxic chemical listings): 67-56-1 Methyl Alcohol
  • TSCA (Toxic Substances Control Act): 64-17-5 Ethyl alcohol ACTIVE
  • 67-56-1 Methyl Alcohol ACTIVE
  • 17372-87-1 disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate ACTIVE
  • 10114-58-6 1,3-bis(2,3-diaminophenylazo)benzenehydrochloride ACTIVE
  • 5141-20-8 Light Green SF Yellowish ACTIVE
  • Hazardous Air Pollutants
  • 67-56-1 Methyl Alcohol
  • Proposition 65
  • Chemicals known to cause cancer: None of the ingredients is listed.
  • Chemicals known to cause reproductive toxicity for females: None of the ingredients is listed.
  • Chemicals known to cause reproductive toxicity for males: None of the ingredients is listed.
  • Chemicals known to cause developmental toxicity:
  • 64-17-5 Ethyl alcohol
  • 67-56-1 Methyl Alcohol
  • Carcinogenic categories
  • EPA (Environmental Protection Agency)
  • None of the ingredients is listed.
  • TLV (Threshold Limit Value)
  • 64-17-5 Ethyl alcohol A3
  • NIOSH-Ca (National Institute for Occupational Safety and Health)
  • None of the ingredients is listed.
  • GHS label elements The product is classified and labeled according to the Globally Harmonized System (GHS).

16. Other Information

SDS preparation date
24 April 2026
Comments
  • Abbreviations and acronyms:
  • ADR: Accord relatif au transport international des marchandises dangereuses par route (European Agreement Concerning the International
  • Carriage of Dangerous Goods by Road)
  • IMDG: International Maritime Code for Dangerous Goods
  • DOT: US Department of Transportation
  • IATA: International Air Transport Association
  • EINECS: European Inventory of Existing Commercial Chemical Substances
  • ELINCS: European List of Notified Chemical Substances
  • CAS: Chemical Abstracts Service (division of the American Chemical Society)
  • NFPA: National Fire Protection Association (USA)
  • HMIS: Hazardous Materials Identification System (USA)
  • VOC: Volatile Organic Compounds (USA, EU)
  • LC50: Lethal concentration, 50 percent
  • LD50: Lethal dose, 50 percent
  • PBT: Persistent, Bioaccumulative and Toxic
  • vPvB: very Persistent and very Bioaccumulative
  • NIOSH: National Institute for Occupational Safety
  • OSHA: Occupational Safety Health
  • TLV: Threshold Limit Value
  • PEL: Permissible Exposure Limit
  • REL: Recommended Exposure Limit
  • BEI: Biological Exposure Limit
  • Substances and mixtures which, in contact with water, emit flammable gases 1: Substances and mixtures which in contact with water emit
  • flammable gases - Category 1
  • Carcinogenicity 1A: Carcinogenicity - Category 1A
  • Specific target organ toxicity (single exposure) 2: Specific target organ toxicity (single exposure) - Category 2
References
EMS SDS EA Counterstain, Gill's Modified. 04/07/2022 https://www.emsdiasum.com/docs/technical/msds/26050-05.pdf