2,6-Dichloroquinone-4-chlorimide

99% AR For Laboratory Use
CAS Number
101-38-2
HSN Code
29252990
Molecular Formula
C6H2Cl3NO
Catalogue Number
AL0612B
Purity
≥ 99%
Molecular Weight
210.45 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance Pale yellow to tan crystalline powder
Shelf Life 2 years
Packaging 50 g in glass bottle
Storage Store in a cool, dry place away from heat and incompatible materials.

Gibbs' reagent (2,6-dichloroquinone-4-chlorimide) is a classic colorimetric reagent used to detect phenolic compounds. It is widely utilized in biochemical assays for its ability to react with phenolic groups, providing a color change that indicates the presence of these compounds.

Also known as Gibbs' reagent.

Catalogue No.
AL0612B
CAS Number
101-38-2
Molecular Formula
C6H2Cl3NO
Molecular Weight
210.45 g/mol
HSN Code
29252990
Grade
99% AR
Product Form
Substance

Pale yellow to tan crystalline powder with a melting point of 90-92 °C. It is soluble in organic solvents such as ethanol and acetone, but insoluble in water.

Appearance
Pale yellow to tan crystalline powder
Shelf Life
2 years
Packaging
50 g in glass bottle
Storage
Store in a cool, dry place away from heat and incompatible materials.

1.1 — Product identifier

Chemical Name
2,6-Dichloroquinone-4-chlorimide
Catalogue No.
AL0612B
Product form
Substance
CAS Number
101-38-2
EC Number
202-935-2
Grade
99% AR
EC Index Number
606-012-00-8
Chemical Formula
C6H2Cl3NO
HSN Code
29252990
Synonyms
Gibbs' reagent

1.2 — Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture
Colorimetric reagent for phenolic compounds
Uses advised against
Not specified

1.3 — Details of the supplier of the safety data sheet

Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 — Emergency Contact Details

Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

2.3 — Other hazards

Other hazards
Self-reactive solid; may cause fire hazard.

3.1 — Substance

Name
2,6-Dichloroquinone-4-chlorimide
CAS No.
101-38-2

4.1 — Description of first aid measures

First-aid measures after inhalation
Move to fresh air. If symptoms persist, seek medical attention.
First-aid measures after skin contact
Wash with soap and water. If irritation occurs, seek medical attention.
First-aid measures after eye contact
Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
First-aid measures after ingestion
Rinse mouth. Do not induce vomiting. Seek medical attention immediately.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
Irritation of eyes, skin, and respiratory tract; potential for burns on contact.

4.3 — Indication of any immediate medical attention and special treatment needed

General information
Treat symptomatically. Show this safety data sheet to the treating physician.

5.1 — Extinguishing media

Suitable extinguishing media
Water spray, carbon dioxide, dry chemical powder, foam.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
Flammable solid; may emit toxic fumes in a fire.

5.3 — Advice for firefighters

Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.

6.1.1 — For non-emergency personnel

Emergency procedures
Evacuate area and eliminate all ignition sources. Use appropriate protective equipment.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Sweep up and place in a suitable container for disposal. Avoid generating dust.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Handle with gloves and avoid inhalation of dust. Use in a well-ventilated area.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 — Conditions for safe storage, including any incompatibilities

Storage conditions
Store in a cool, dry place away from heat and incompatible materials.

8.2 — Exposure controls

Hand protection
Protective gloves (e.g. nitrile rubber)
Eye protection
Chemical safety goggles or safety glasses
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use appropriate respiratory protection if dust is generated.

9.1 — Information on basic physical and chemical properties

Physical state
Solid
Colour
Pale yellow to tan
Odour
Odourless
Odour threshold
Not applicable
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
90-92 °C
Freezing point
Not applicable
Boiling point
Not applicable
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
Not applicable
Flammability (solid, gas)
Flammable solid
Vapour pressure
Not applicable
Relative vapour density at 20°C
Not applicable
Density
1.55 g/cm³
Solubility
Soluble in organic solvents; insoluble in water
Log Pow
Not applicable
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Not explosive
Oxidising properties
Not oxidising
Explosive limits
Not applicable

10.1 — Reactivity

Reactivity
Stable under normal conditions; avoid heat and ignition sources.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
No dangerous reactions known under normal conditions of use.

10.4 — Conditions to avoid

Conditions to avoid
Avoid contact with incompatible materials and excessive heat.

10.5 — Incompatible materials

Incompatible materials
Strong oxidizers, strong acids, and bases.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Not specified

11.1 — Information on toxicological effects

Acute toxicity
May be harmful if swallowed or inhaled; LD50 (oral, rat) > 2000 mg/kg.
Skin corrosion/irritation
Causes skin irritation.
Serious eye damage/irritation
Causes serious eye irritation.
Respiratory or skin sensitisation
May cause allergic skin reactions in sensitive individuals.
Germ cell mutagenicity
Not classified
Carcinogenicity
Not classified
Specific target organ toxicity (single exposure)
Not classified as a specific target organ toxicant.
Specific target organ toxicity (repeated exposure)
Not classified

12.1 — Toxicity

Toxicity information
Not specified

12.2 — Persistence - degradability

Persistence - degradability
Not specified

12.3 — Bioaccumulative potential

Bioaccumulative potential
Not specified

12.4 — Mobility in soil

Mobility in soil
Not specified

12.6 — Other adverse effects

Environmental precautions
Not specified

13.1 — Waste treatment methods

Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.

14.1 — UN number

UN-No. (ADR)
UN 3224
UN-No. (IMDG)
UN 3224
UN-No. (IATA)
UN 3224
UN-No. (ADN)
UN 3224
UN-No. (RID)
UN 3224

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
2,6-Dichloroquinone-4-chlorimide
Proper Shipping Name (IMDG)
2,6-Dichloroquinone-4-chlorimide
Proper Shipping Name (IATA)
2,6-Dichloroquinone-4-chlorimide
Proper Shipping Name (ADN)
2,6-Dichloroquinone-4-chlorimide
Proper Shipping Name (RID)
2,6-Dichloroquinone-4-chlorimide

14.3 — Transport hazard class(es)

Transport hazard class(es)
4.1

14.4 — Packing group

Packing group (ADR)
None
Packing group (IMDG)
None
Packing group (IATA)
None
Packing group (ADN)
None
Packing group (RID)
None

14.5 — Environmental hazards

Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available

15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture

15.1.1 EU-Regulations
Not specified

Used as the key colorimetric reagent in the Gibbs test for detecting phenolic and tyrosine-containing compounds. It is also employed in various analytical chemistry applications for the quantification of phenolic substances.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL0612B
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
210.45 g/mol
Test Standard Observed
Description Yellow crystalline powder Yellow crystalline powder
Assay Min. 98% 98.36%
Melting point 65 - 68°C 65°C
Spec. Absorptivity A1%/1cm (312 nm; 0.001%; ethanol) Min. 800 816

The above product complies with AR grade

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
99% AR ≥ 99% 90-92 °C ≤ 0.5% ≤ 0.1% None detected Soluble in ethanol and acetone
View full Technical Data Sheet

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