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Dye intermediates

Edans

Also known as 5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid, 5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid, 5-(2-Aminoethylamino)naphthalene-1-sulphonic acid

CAS 50402-56-7Formula C12H14N2O3SMolar mass 266.32 g/molEC 256-575-5
GHS signal word: Warning. Pictograms: Harmful or irritant 2 suppliers listed
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Edans chemical structure, C12H14N2O3S, CAS 50402-56-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50402-56-7
Formula
C12H14N2O3S
Molar mass
266.32 g/mol
EC number
256-575-5
HS code
292159
Category
Dye intermediates

What is Edans?

Plain description, key identifiers and synonyms

Edans is a chemical substance with the molecular formula C12H14N2O3S and a molar mass of 266.32 g/mol. Its CAS registry number is 50402-56-7. The IUPAC name is 5-(2-aminoethylamino)naphthalene-1-sulfonic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-(2-aminoethylamino)naphthalene-1-sulfonic acid
CAS number
50402-56-7 CAS number cross-checked
EC number
256-575-5
Molecular formula
C12H14N2O3S
UNII
3JBY896YZF
MDL number
MFCD00066932
InChIKey
SJQRQOKXQKVJGJ-UHFFFAOYSA-N
InChI
InChI=1S/C12H14N2O3S/c13-7-8-14-11-5-1-4-10-9(11)3-2-6-12(10)18(15,16)17/h1-6,14H,7-8,13H2,(H,15,16,17)
SMILES (canonical and isomeric)
C1=CC2=C(C=CC=C2S(=O)(=O)O)C(=C1)NCCN

Synonyms

  • 5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid
  • 5-[(2-aminoethyl)amino]naphthalene-1-sulfonic acid
  • 5-(2-Aminoethylamino)naphthalene-1-sulphonic acid
  • 1,5-EDANS
  • N-(Aminoethyl)-5-naphthylamine-1-sulfonic acid
  • 5-(2-aminoethylamino)naphthalene-1-sulfonic acid
  • 5-(2-Aminoethylamino)-1-naphthalenesulfonic acid
  • 1-Naphthalenesulfonic acid, 5-[(2-aminoethyl)amino]-
  • N-[Aminoethyl]-5-naphthylamine-1-sulfonic acid
  • EDANS acid
  • 5-(2-Aminoethylamino)-1-naphthalene sulfonic acid
  • EDANS (Standard)
  • 5-[(2-aminoethyl)amino]naphthalenesulfonic acid
  • 5-(2-aminoethylamino)-1-naphthalene-*sulfonicaci
  • 5-[(2-Aminoethyl)amino]-1-naphthalenesulfonic acid
  • N-(2-Aminoethyl)-5-naphthylamine-1-sulphonic acid
  • 5-[(2-Aminoethyl)amino]naphthalene-1-sulphonic acid
  • 5-(2-Aminoethylamino)-1-naphthalenesulphonic acid sodium salt
  • 5-(2-Aminoethylamino)-1-naphthalenesulfonic acid, suitable for fluorescence

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
266.32 g/molcalc.
Exact mass
266.0725 Dacalc.
LogP (octanol/water)
1.46calc.
Topological polar surface area
92.42 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
4calc.
Heavy atoms
18calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.17calc.
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, c1ccc2ccccc2c1

c1ccc2ccccc2c1

2 rings, 10 atoms, the Naphthalene ring system.

17,920 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (21)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • 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.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

Edans suppliers

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

All 2 suppliers
  • AAT Bioquest
    United States, PleasantonUnclaimed profile
    EdansGrade, purity and minimum order on request
    Price on request
    View
  • Angel Pharmatech Ltd.
    China, ShanghaiUnclaimed profile
    EdansGrade, purity and minimum order on request
    Price on request
    View

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

2 suppliers in 2 countries

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Edans price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2921.59Indicative HS code

Aromatic polyamines and their derivatives, salts thereof, other

World exports in 2024
$510M
−0.4% vs 2023, imports $488M
2019 to 2024
Top exporters
  1. China26.6%
  2. Japan16.6%
  3. India * partner reported12.4%
Top importers
  1. United States17.9%
  2. Germany11.6%
  3. South Korea7.4%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Edans, based on the data on this page

What is Edans?

Edans is a chemical substance with the molecular formula C12H14N2O3S and a molar mass of 266.32 g/mol. Its CAS registry number is 50402-56-7. The IUPAC name is 5-(2-aminoethylamino)naphthalene-1-sulfonic acid.

What is the CAS number of Edans?

The CAS registry number of Edans is 50402-56-7.

What is the molecular formula and weight of Edans?

The molecular formula of Edans is C12H14N2O3S and its molar mass is 266.32 g/mol.

Is Edans hazardous?

Edans carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, may cause an allergic skin reaction. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Edans?

Edans is usually classified under HS code 292159 (Aromatic polyamines and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Edans?

CompoundList lists 2 suppliers of Edans in China and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Edans?

Suppliers quote Edans 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 Edans

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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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