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Aromatic building blocks

C Amine

Also known as 2-Amino-5-chloro-4-methylbenzenesulfonic acid, Red Lake C amine, Benzenesulfonic acid, 2-amino-5-chloro-4-methyl-

CAS 88-53-9Formula C7H8ClNO3SMolar mass 221.67 g/molEC 201-839-7
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 11 suppliers listed
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C Amine chemical structure, C7H8ClNO3S, CAS 88-53-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
88-53-9
Formula
C7H8ClNO3S
Molar mass
221.67 g/mol
EC number
201-839-7
HS code
292143
Category
Aromatic building blocks

What is C Amine?

Plain description, key identifiers and synonyms

C Amine is a chemical substance with the molecular formula C7H8ClNO3S and a molar mass of 221.67 g/mol. Its CAS registry number is 88-53-9. The IUPAC name is 2-amino-5-chloro-4-methylbenzenesulfonic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-amino-5-chloro-4-methylbenzenesulfonic acid
CAS number
88-53-9 CAS number cross-checked
EC number
201-839-7
Molecular formula
C7H8ClNO3S
UNII
HNF96511X2
MDL number
MFCD00043924
InChIKey
VYZCFAPUHSSYCC-UHFFFAOYSA-N
InChI
InChI=1S/C7H8ClNO3S/c1-4-2-6(9)7(3-5(4)8)13(10,11)12/h2-3H,9H2,1H3,(H,10,11,12)
SMILES (canonical and isomeric)
CC1=CC(=C(C=C1Cl)S(=O)(=O)O)N

Synonyms

  • 2-Amino-5-chloro-4-methylbenzenesulfonic acid
  • Red Lake C amine
  • Benzenesulfonic acid, 2-amino-5-chloro-4-methyl-
  • p-Toluenesulfonic acid, 2-amino-5-chloro-
  • LRCA
  • 5-Amino-2-chlorotoluene-4-sulfonic Acid
  • Lake Red C Amine
  • 3-Amino-6-chlorotoluene-4-sulfonic acid
  • 2-amino-5-chloro-4-methyl-benzenesulfonic acid
  • 2-amino-5-chloro-4-methylbenzene-1-sulfonic acid
  • 4-Chloro-m-toluidine-6-sulfonic Acid
  • 4-Chloro-5-methylaniline-2-sulfonic Acid
  • 5-Amino-2-chlorotoluene-4-sulphonic acid
  • 2-Amino-4-methyl-5-chlorobenzenesulfonic acid
  • C-Saure
  • 2-amino-5-chloro-p-toluenesulfonic acid
  • 2-Amino-5-chloro-4-methylbenzenesulfonicacid
  • 2-chloro-5-aminotoluene-4-sulfonic acid
  • 2-chloro-5-amino-4-toluene sulfonic acid
  • 2-Chloro-5-toluidine-4-sulfonic acid
  • 1-Amino-4-chloro-5-methylbenzene-2-sulfonic acid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
221.67 g/molcalc.
Exact mass
220.9913 Dacalc.
LogP (octanol/water)
1.48calc.
Topological polar surface area
80.39 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
13calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.14calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H319Causes serious eye irritation.
Precautionary statements (15)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P337 + P317If eye irritation persists: Get medical help.
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

C Amine suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 11 suppliers
11 of 11 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

11 suppliers in 2 countries

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C Amine price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Industrial uses: Pigment.

Consumer uses: Pigment.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code C Amine is traded under.

HS 2921.43Indicative HS code

Toluidines and their derivatives, salts thereof

World exports in 2024
$259M
−5.9% vs 2023, imports $261M
2019 to 2024
Top exporters
  1. China42.0%
  2. Germany16.6%
  3. Italy14.8%
Top importers
  1. United States23.5%
  2. India * partner reported18.1%
  3. Australia14.5%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for C Amine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about C Amine, based on the data on this page

What is C Amine?

C Amine is a chemical substance with the molecular formula C7H8ClNO3S and a molar mass of 221.67 g/mol. Its CAS registry number is 88-53-9. The IUPAC name is 2-amino-5-chloro-4-methylbenzenesulfonic acid.

What is the CAS number of C Amine?

The CAS registry number of C Amine is 88-53-9.

What is the molecular formula and weight of C Amine?

The molecular formula of C Amine is C7H8ClNO3S and its molar mass is 221.67 g/mol.

What is C Amine used for?

Industrial uses: Pigment. Consumer uses: Pigment.

Is C Amine hazardous?

C Amine carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of C Amine?

C Amine is usually classified under HS code 292143 (Toluidines and their derivatives, salts thereof). This is indicative, confirm it with your customs broker before shipping.

Where can I buy C Amine?

CompoundList lists 11 suppliers of C Amine in India and China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy C Amine in India?

10 suppliers in India list C Amine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of C Amine?

Suppliers quote C Amine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle C Amine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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