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Safety Data Sheet
1. Chemical product and company identification
Product name: EL-GBL

Company information
Name of manufacturer
Address
Name of section
Telephone number
Facsimile number
Mail address
Reference No： KANTO CHEMICAL CO., INC.
： 2-1, Nihonbashi, Muromachi 2-Chome, Chuo-Ku, Tokyo, 103-0022, Japan： Electronic materials division technical department： +81-3-6214-1080： +81-3-3241-1043： el-info@kanto.co.jp: GE00432 1.1

Recommended uses andrestrictions: Electronic chemicals

2. Hazards identification
GHS classification
Health hazards

Acute toxicity (oral)

Category 4

Serious eye damage/eyeirritation

Category 2ASpecific target organ toxicity(single exposure)

Category 2 (central nervous system)

Specific target organ toxicity(single exposure)

Category 3 (narcosis)

Hazardpictograms

Signal word:

Warning

Hazard statements:

Harmful if swallowed
Causes serious eye irritation
May cause drowsiness or dizziness
May cause damage to organs (central nervous system)

Prevention:

Do not breathe mist, vapors.
Wash hands, forearms and face thoroughly after handling.
Do not eat, drink or smoke when using this product.
Use only outdoors or in a well-ventilated area.
Wear protective gloves/protective clothing/eye protection/faceprotection.

Response:IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell.
IF INHALED: Remove person to fresh air and keep comfortable forbreathing.
IF IN EYES: Rinse cautiously with water for several minutes.
Remove contact lenses, if present and easy to do. Continue
rinsing.
IF exposed or concerned: Call a POISON CENTER or doctor.

Precautionary statements

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Call a POISON CENTER or doctor if you feel unwell.
Rinse mouth.
If eye irritation persists: Get medical advice/attention.
Storage:

Store in a well-ventilated place. Keep container tightly closed.
Store locked up.

Disposal:

Dispose of contents/container to hazardous or special waste
collection point, in accordance with local, regional, national
and/or international regulation.

3. Composition/information on ingredients
Distinction of substance ormixture:SubstanceSynonyms:

γ-Butyrolactone

Chemical name4-Butyrolactone

Concentration (%)
min. 99.5

FormulaC4H6O2

TSCA
ListedEC-No.
202-509-5

CAS RN
96-48-0

4. First aid measures
First aid measures
First-aid measures afterinhalation:

Remove the victim to fresh air, and make him blow his nose andgargle.

First-aid measures after skincontact:

Wash the affected areas under running water.

First-aid measures after eye
contact:

Wash the affected areas under running water for at least 15
minutes. If necessary, get medical treatment.

First-aid measures afteringestion:Give the victim water or salt water and make him vomit. Get
medical attention.

Personal Protection in FirstAid and Measures:

Rescuers should wear proper protective equipment like rubber
gloves, goggles.

Suitable extinguishing media:

Water, dry chemical powder, carbon dioxide, dry sandUnsuitable extinguishing media

:

None

Firefighting instructions:

Move containers from fire area if it can be done without risk, if
not possible, apply water from a safe distance to cool andprotect surrounding area.

5. Fire fighting measures

Dry chemical powder, carbon dioxide or dry sand should be used
for small fires. Foam extinguisher is effective for a large scale
fire.
Personal protection (Emergencyresponse):

Wear breathing apparatus.

6. Accidental release measures
Personal Precautions, Protective Equipment and Emergency Procedures
General measures:

Wear proper protective equipment and avoid contact with skin andinhalation of vapor. Conduct operations from upwind and evacuate
people downwind. Remove all sources of ignition. Keep away
personnel except for authorized ones from spillage area by

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stretching ropes.
Environmental precautions
Environmental precautions:

Attention should be given to avoid discharge of spilled productinto rivers and resulting environmental damage. When diluting
spill with large amounts of water, discharge of untreatedwastewater into the environment must be avoided.

Methods and Equipment for Containment and Cleaning up
For containment:

Absorb spill with inert material （e.g, diatomaceous earth,sand） and flush spillage area with copious amounts of water.

Prevention Measures for
Secondary Accidents:

Remove nearby sources of ignition and prepare extinguishingmedia.

:

Wear proper protective equipment to avoid contact with skin or
inhalation of vapor. Fire is strictly prohibited.

7. Handling and storage
Handling
Technical measures

Ventilate well at working places.
Precautions for safe handling:

Use with an enclosed system or a local exhaust ventilation. Use
in well-ventilated areas.
Do not allow contact with oxidizing substances.

Storage
Storage conditions:

Store in a dark, cool place and tightly closed.

Material used inpackaging/containers:

Glass, stainless steel.

8. Exposure controls / Personal protection equipmentACGIH TWA

Not established

Appropriate engineering
controls
Protective equipment: Use with an enclosed system or a local exhaust ventilation.

Respiratory protection: If necessary, wear chemical cartridge respirator with an organic
vapor cartage

Hand protection: Impervious protective gloves

Eye protection: Safety goggles

Skin and body protection: Protective clothing, protective boots

9. Physical and chemical properties
Physical state: LiquidColor: Colorless － pale yellow

Odor: Acetone like odor

pH: No data available

Melting point: -43.53 °C

Freezing point: No data available

Boiling point: 204 °C

Flash point: 98.3 °C

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Auto-ignition temperature: 455 °C

Decomposition temperature: No data available

Flammability: No data available

Vapor pressure: 1.5 hPa (20℃)

Relative density: No data available

Density: 1.13 g/cm³ (25℃)

Relative gas density: 3.0Solubility: Water: Miscible.

Partition coefficient noctanol/water (log Pow)

: 0.298

Explosive limits (vol %): 3.6 – 16 vol %Viscosity, kinematic:: 1.5 mm²/s (25℃)

Particle characteristics: No data available

10. Stability and reactivity
Reactivity: May react with oxidizing substances.

Chemical stability: Stable under normal conditions.

Possibility of hazardous
reactions: No data available

Conditions to avoid: Light, heat.

Incompatible materials: Oxidizing substances.

Hazardous decomposition
products: Carbon monoxide.

11. Toxicological information
Acute toxicity (oral)
Acute toxicity (dermal)
Acute toxicity (inhalation): Harmful if swallowed
rat oral LD50=1540mg/kg: No classification
guinea pig skin LD50>5000mg/kg: No classification (gas)Classification not possible (vapor)
No classification (dust, mist): rat inhalation LC50>5.1mg/L/4H

Acute toxicity (mist) Description
Skin corrosion/irritation:

Serious eye damage/irritation:

Respiratory sensitization
Skin sensitization::No classification
In the rabbit test, application of undiluted substance for 20 hours
caused no irritating effects. In other rabbit test, slightly,
hardly perceptible or moderate erythema and hardly perceptible
edema occurred and resulted as "mildly irritating". Based on theinformation, the substance was classified into “Noclassification”.
Causes serious eye irritation
In several reports of rabbit tests, there was only one informationof the study in conformity with OECD TG 405 and GLP from the "List1" information source. In the test with 0.1mL of undiluted
substance, the modified maximum average score (MMAS) was 43.9
(maximum score was 110) equivalent to AOI 30-80. Thus, thesubstance was classified into category 2A.
Classification not possible
Classification not possible

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Germ cell mutagenicity:Carcinogenicity:

Reproductive toxicity
STOT-single exposure::

STOT-repeated exposure
Aspiration hazard::

Classification not possible
There are negative results in both of two micronucleus tests usingbone marrow cells obtained from the mice intraperitoneallyadministered (in vivo mutagenicity test in somatic cells).
No classification
IARC classifies it as group 3(not classifiable as to its
carcinogenicity to humans).
Classification not possible
May cause damage to organs (central nervous system)
May cause drowsiness or dizziness
As for acute toxic effects based on human cases, the following
symptoms were described: bradycardia, hypothermia, depression ofcentral nervous system, prolonged unconsciousness, confusion,aggression, torpor, and ataxia. In fact, unconsciousness wasreported in numerous cases who ingested the substance or its
products, and the signs concurrently observed included coma,
narcosis, convulsions and hypopnea (KemI-Riskline (2004), HSDB(2000)). In the animal study, signs of sedation and loss ofrighting reflex were described in rats (LD50 value: 1800 mg/kg)
following single oral administration. With regard to the results
described above, since information on humans were collected fromthe "List 2" information source and the findings of rats
corresponded to category 2 within the range of the guidance values,
the substance was classified as category 2 (central nervoussystem). Moreover, narcotic effects were also described, so thatcategory 3 (narcosis) was added.
Classification not possible
Classification not possible

12. Ecological information
Ecotoxicity
Aquatic acute
Aquatic chronic: No classification
Fish (Carp) LC50=220-460mg/L/96H: No classification

Persistence and degradability
No additional information available
Bioaccumulative potential
No additional information available
Mobility in soil
No additional information available
Hazardous to the ozone layer
Ozone: Classification not possible

13. Disposal considerations
Ecological waste information: Burn in a chemical incinerator equipped with an afterburnerand a scrubber. Or entrust approved waste disposal companies
with the disposal.

Contaminated container andpackaging: In case of disposal of empty bottles, dispose bottles after
removing the content thoroughly.

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14. Transport information
International Regulations
Transport by sea(IMDG)
UN-No. (IMDG)
Proper Shipping Name (IMDG)
Packing group (IMDG)
Transport hazard class(es)(IMDG)Air transport(IATA)
UN-No. (IATA)
Proper Shipping Name (IATA)
Packing group (IATA)
Transport hazard class(es)(IATA)
Marine pollutant

:
:
:
:

Not applicableNot applicableNot applicableNot applicable

:
:
:
:

Not applicableNot applicableNot applicableNot applicable:Not applicable

15. Regulatory information
Regulatory information with regard to this substance in your country or region should be examined byyour own responsibility.

16. Other information
Data sources: Dictionary of Organic Compounds, The society of Synthetic
Organic Chemistry, Kodansha Ltd.（1985）.
Solvents Handbook, T, Asahara el, Kodansha Scientific Ltd.
（1976）.
Dangerous Properties of Industrial Materials,6th ed.
N.I.Sax Van Nostrand Reinhold Company（1984）.
Handbook of 17322 Chemical Products, The Chemical Daily Co.
（2022）.
NITE Chemical Risk Information Platform (NITE-CHRIP), National
Institute of Technology and Evaluation.

The information contained herein is based on several references and the present state of ourknowledge. However the SDS does not always cover all information about the product, handle theproduct carefully.The information is intended to ordinary usage, in case of particular handlings,
conduct appropriate safety measurements.The information herein is only provision of information, andit does not represent a guarantee the properties of the product.The Safety Data Sheet(SDS) isprepared based on JIS Z7253.