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CAS No. 98-44-2

2,5-Aniline Disulfonic Acid

CAS # 98-44-2

2,5- Aniline Disulphonic Acid

CAS # 95-85-2

4-Chloro-2-Aminophenol (4-CAP)

CAS # 591-27-5

Meta-aminophenol (MAP)

CAS # 121-47-1

Metanilic Acid

CAS # 119-90-4

O-Dianisidine (Fast Blue B Base)

CAS # 119-90-4

O-Dianisidine dihydrochloride

Pharmaceuticals Intermediates

Pestisides Intermediates

Dyes Intermediates

Paper Intermediates

Cosmetics

Pestisides Intermediates

Our products have diverse applications in the following industries

Pharmaceutical

Pesticides

Paper

Dyestuff

Cosmetics

Technical Specifications

Product Name 2,5–Aniline Disulfonic Acid CAS No. 98-44-2
Purity 80% Min
Appearance Moist white powder
Mole. Weight 253.2 g/mole (Monosodium salt: 275.2 g/mole)
Structural Formula Chemical Structure
Emp. Formula C6H7NO6S2
Insolubility 0.1% Max
Metallic 0.5% Max
Moisture 10% Max
Application Intermediate for optical brightening agents and dyes like Direct Blue 70, 78, 82, 83, Direct Black 77, Direct Green 20, Direct Red 103, Film Orange P (by), Mordant Azol Printing Bordeaux B, Pigment Saturn Yellow 5 GL etc.
Safety Instruction Appropriate PPE should be worn such as Rubber/Plastic Gloves, Apron, and Safety Goggles.
Packing 25, 50, 500 (Jumbo) Kg HDPE bags with separate liner inside as per customer's requirement.
Storage Protect from fire and sunlight.
Description
Aniline 2,5-Disulphonic Acid is an organic chemical compound widely used as an intermediate in the production of dyes, pigments, and pharmaceuticals. It contains two sulfonic acid groups attached to an aniline structure at the 2 and 5 positions. Its primary application is in azo dye synthesis, helping impart specific color properties. It is also used in manufacturing other chemical intermediates in the dyeing industry.

Technical Specifications

Product Name 4-CHLORO-2-AMINOPHENOL (4-CAP) CAS No. 95-85-2
Chemical Name Meta-Amino Benzene Sulphonic Acid (Aniline 3 Sulphonic Acid)
Appearance White to Off-White colored powder
Mole. Weight 173.2 gm/mole
Structural Formula Chemical Structure
Emp. Formula C6H7NO3S
Purity 98% Min.
Solubility Soluble in dilute alkaline solution
Sulphalinic Acid 1.0% Max.
Application Intermediate in the production of azo dyes and hair dyes, used in pharmaceutical synthesis, polymer and pigment intermediates.
Safety Instruction Appropriate PPE should be worn such as Rubber/Plastic Gloves, Apron, and Safety Goggles. Avoid dust formation.
Packing 25/50 Kgs. H.D.P.E. bags with separate polyethylene liner inside as per customer’s requirement.
Storage Store in a cool, dry, well-ventilated area in tightly sealed containers.
Description
Meta Amino Benzene Sulphonic Acid (MABS) is an organic compound characterized by a benzene ring with an amino group (NH2) at the meta position and a sulphonic acid group (SO3H). It is primarily used as an intermediate in the synthesis of dyes, pigments, and various chemical products. The compound is notable for its solubility in water and its role in producing colorants that remain stable under a wide range of conditions.

Technical Specifications

Product Name META-AMINOPHENOL (MAP) CAS No. 591-27-5
Chemical Name 3-Aminophenol or 3-Amino 1 Hydroxy Benzene
Appearance Off-white to white flakes/powder
Mole. Weight 109.13 gm/mole
Structural Formula Chemical Structure
Emp. Formula C6H7NO
Purity <1.0% (OAP, PAP, Resorcinol & others)
Assay 99.0% Minimum (by HPLC)
Moisture 0.4% Max. (KF)
Application Intermediate for azo and oxidative dyes, ingredient in hair dye formulations, precursor in pharmaceutical synthesis, polymer and chemical additive manufacturing.
Safety Instruction Appropriate PPE should be worn such as Rubber/Plastic Gloves, Apron, and Safety Goggles. Avoid dust formation.
Packing 25 Kgs. HDPE bags with separate liner inside as per customer's requirement.
Storage Store in tightly sealed containers in a cool, dry, and well-ventilated place away from heat and moisture.
Description
Meta-Aminophenol (MAP) is an organic chemical compound primarily used as an intermediate in the production of dyes, pharmaceuticals, and specialty chemicals. It contains both an amino group (NH2) and a hydroxyl group (OH) attached to a benzene ring, making it valuable in hair dye formulations, antioxidants, and the synthesis of certain drugs.

3-Hydroxyaniline is an organic compound featuring a hydroxyl group attached at the third position of a diphenylamine structure. It is frequently used in dye intermediates, pharmaceutical preparations, and pigment production.

Technical Specifications

Product Name METANILIC ACID CAS No. 121-47-1
Chemical Name Aniline 3-Sulphonic Acid or Meta-Aminobenzene Sulphonic Acid
Appearance White to Off-White colored powder
Mole. Weight 173.2 gm/mole
Structural Formula Chemical Structure
Emp. Formula C6H7NO3S
Purity 98% Min.
Solubility Soluble in dilute alkaline solution
Sulphalinic Acid 1.0% Max.
Application Intermediate for azo dyes (especially for coupling reactions), precursor for fluorescent whitening agents, used in the synthesis of sulfonated aromatic compounds, electroplating bath additive (in specialized processes).
Safety Instruction Appropriate PPE should be worn such as Rubber/Plastic Gloves, Apron, and Safety Goggles. Avoid dust formation.
Packing 25/50 Kgs. H.D.P.E. bags with separate polyethylene liner inside as per customer’s requirement.
Storage Store in a tightly sealed container in a cool, dry, well-ventilated area. Avoid exposure to moisture and strong oxidizing agents.
Description
Meta Amino Benzene Sulphonic Acid (MABS) is an organic compound characterized by a benzene ring with an amino group (NH2) at the meta position and a sulphonic acid group (SO3H). It is primarily used as an intermediate in the synthesis of dyes, pigments, and various chemical products. The compound is notable for its solubility in water and its role in producing colorants that are stable under a variety of conditions.

Technical Specifications

Product Name FAST BLUE B BASE CAS No. 20282-70-6
Chemical Name 3-3 Dimethoxybenzidine or o-Dianisidine
Appearance Wet Powder, Pinkish Color
Mole. Weight 244.00 gm/mole
Structural Formula Chemical Structure
Emp. Formula C14H16N2O2
Purity 80% Min.
Solubility Soluble in alcohol and HCL.
Insolubles 0.25% Max.
Application Used as a dye intermediate for rapid dyes and textile cotton dyeing. Used for histochemical staining (especially for phosphatases), colorimetric detection of enzymes and phenols, coupling component in azo dye manufacture, and analytical reagent in labs.
Safety Instruction Appropriate PPE should be worn such as Rubber/Plastic Gloves, Apron, and Safety Goggles. Avoid dust formation.
Packing 25/50 Kgs. H.D.P.E. bags with separate polyethylene liner inside as per customer’s requirement.
Storage Store in tightly sealed containers in a cool, dry, well-ventilated area. Protect from heat and light.
Description
3,3´-Dimethoxybenzidine (Purity 80%) is a chemical compound used in various industrial and laboratory applications. It is an aromatic amine derivative, characterized by the presence of two methoxy groups attached to the benzidine core. Commonly utilized as an intermediate in the synthesis of dyes, pigments, and other organic compounds.

Technical Specifications

Product Name ORTHO DIANSIDINE DIHYDROCHLORIDE CAS No. 20325-40-0
Chemical Name 3-3 Dimethoxybenzidine dihydrochloride or o-Dianisidine dihydrochloride
Appearance Wet Powder
Mole. Weight 317.21 gm/mole
Structural Formula Chemical Structure
Emp. Formula C14H18N2O2Cl2
Purity 99% Min.
Solubility Soluble in water
Insolubles 0.10% Max.
Application Intermediate in the production of dyes (azo and phthalocyanine), used in pigment and polymer manufacturing, electrochemical and colorimetric analysis, histochemical staining (limited analytical use).
Safety Instruction Appropriate PPE should be worn such as Rubber/Plastic Gloves, Apron, and Safety Goggles. Avoid dust formation.
Packing 25/50 Kgs. H.D.P.E. bags with separate polyethylene liner inside as per customer's requirement.
Storage Store in tightly sealed containers in a cool, dry place. Protect from moisture and direct sunlight.
Description
3,3´-Dimethoxybenzidine dihydrochloride is an organic chemical compound used as an intermediate in dye, pigment, and specialty polymer manufacturing. It is valued for its dual methoxy functional groups attached to the benzidine structure, enhancing its reactivity. In its dihydrochloride salt form, it is more stable, improving solubility in water and other solvents.