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Indicators and stains

Alizarin complexone

Also known as Alizarin Fluorine Blue, Alizarinkomplexon, Alizarine Fluorine Blue

CAS 3952-78-1Formula C19H15NO8Molar mass 385.33 g/molEC 223-544-2
GHS signal word: Warning. Pictograms: Harmful or irritant 24 suppliers listed
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Alizarin complexone chemical structure, C19H15NO8, CAS 3952-78-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
3952-78-1
Formula
C19H15NO8
Molar mass
385.33 g/mol
EC number
223-544-2
HS code
292250
Category
Indicators and stains

What is Alizarin complexone?

Plain description, key identifiers and synonyms

Alizarin complexone is a dihydroxyanthraquinone compound in which the hydroxy groups are at C-1 and C-2 and which has a bis[(carboxymethyl)amino]methyl substituent at the 3-position. It has a role as a colorimetric reagent. It is a dicarboxylic acid and a dihydroxyanthraquinone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[carboxymethyl-[(3,4-dihydroxy-9,10-dioxoanthracen-2-yl)methyl]amino]acetic acid
CAS number
3952-78-1 CAS number cross-checked
EC number
223-544-2
Molecular formula
C19H15NO8
UNII
TX8W05MTS6
MDL number
MFCD00001202
InChIKey
PWIGYBONXWGOQE-UHFFFAOYSA-N
InChI
InChI=1S/C19H15NO8/c21-13(22)7-20(8-14(23)24)6-9-5-12-15(19(28)16(9)25)18(27)11-4-2-1-3-10(11)17(12)26/h1-5,25,28H,6-8H2,(H,21,22)(H,23,24)
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C(=C3)CN(CC(=O)O)CC(=O)O)O)O

Synonyms

  • Alizarin Fluorine Blue
  • Alizarinkomplexon
  • Alizarine Fluorine Blue
  • 3-Aminomethylalizarin-N,N-diacetic acid
  • Acetic acid, (((3,4-dihydroxy-2-anthraquinonyl)methyl)imino)di-
  • 1,2-Dihydroxy-anthrachinon-3-methylen-iminodiessigsaeure
  • (((3,4-Dihydroxy-2-anthraquinonyl)methyl)imino)diacetic acid dihydrate
  • Glycine, N-(carboxymethyl)-N-((9,10-dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenyl)methyl)-
  • Glycine, N-(carboxymethyl)-N-[(9,10-dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenyl)methyl]-
  • {[(3,4-Dihydroxy-2-anthraquinonyl)methyl]imino}diacetic acid dihydrate
  • 2,2'-{[(3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)methyl]imino}diacetic acid
  • 2,2'-(((3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)methyl)imino)diacetic acid
  • Alizarin-3-methyliminodiacetic acid
  • 2,2'-(((3,4-Dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)methyl)azanediyl)diacetic acid
  • 3-Aminomethyl alizarin N,N-diacetic acid
  • Az-C
  • 3,4-Dihydroxyanthraquinon-2-ylmethyliminodi(acetic acid)
  • Alizarin-3-methylimino-N,N-diacetic Acid
  • 2-[carboxymethyl-[(3,4-dihydroxy-9,10-dioxoanthracen-2-yl)methyl]amino]acetic acid
  • 2-[carboxymethyl-[(3,4-dihydroxy-9,10-dioxo-2-anthryl)methyl]amino]acetic acid
  • Glycine,N-(carboxymethyl)-N-[(9,10-dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenyl)methyl]-
  • Alizarin-3-methylamine-N,N-diacetic Acid
  • 2-[(carboxymethyl)[(3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)methyl]amino]acetic acid
  • 1,2-Dihydroxyanthraquinonyl-3-methylamine-N,N-diacetic Acid
  • 1,2-Dihydroxyanthraquinone-3-methylamine-N,N-diacetic acid
Show all 36 synonyms
  • 2-{[(3,4-dihydroxy-9,10-dioxo(2-anthryl))methyl](carboxymethyl)amino}acetic ac id
  • 2,2'-{[(3,4-Dihydroxy-9,10-dioxo-9,10-dihydroanthracen-2-yl)methyl]azanediyl}diacetic acid
  • Reagecon Alizarin Fluorine Blue Indicator TS Solution according to Chinese Pharmacopoeia (ChP)
  • Alizarin complex indicator
  • 3,4-Dihydroxyanthraquinon-2-yl-methylimino-diacetic acid
  • Alizalin-3-methylamine N,N-diacetic acid
  • Alizarine-3-methylimino-N,N-diacetic acid
  • (3,4-Dihydroxy-2-anthraquinonyl)-methyliminoacetic acid
  • Acetic acid,4-dihydroxy-2-anthraquinonyl)methyl]imino]di-
  • N-(3,4-Dihydroxy-2-anthraquinonylmethyl)iminodiacetic acid
  • Glycine,10-dihydro-3,4-dihydroxy-9,10-dioxo-2-anthracenyl)methyl]-

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
385.33 g/molcalc.
Exact mass
385.0798 Dacalc.
LogP (octanol/water)
0.84calc.
Topological polar surface area
152.4 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
7calc.
Rotatable bonds
6calc.
Heavy atoms
28calc.
Rings
3calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.16calc.
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, O=C1c2ccccc2C(=O)c2ccccc21

O=C1c2ccccc2C(=O)c2ccccc21

3 rings, 16 atoms, the Anthraquinone ring system.

2,059 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.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
Precautionary statements (13)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • 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.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Alizarin complexone suppliers

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Where suppliers are based

24 suppliers in 8 countries

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Alizarin complexone 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

Roles

  • colorimetric reagent
  • reagent

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 Alizarin complexone is traded under.

HS 2922.50Indicative HS code

Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function

World exports in 2024
$3.29B
−5.9% vs 2023, imports $3.19B
2019 to 2024
Top exporters
  1. China39.2%
  2. United Kingdom27.1%
  3. India * partner reported4.8%
Top importers
  1. United States20.7%
  2. Germany7.6%
  3. Italy6.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Alizarin complexone, based on the data on this page

What is Alizarin complexone?

Alizarin complexone is a dihydroxyanthraquinone compound in which the hydroxy groups are at C-1 and C-2 and which has a bis[(carboxymethyl)amino]methyl substituent at the 3-position. It has a role as a colorimetric reagent. It is a dicarboxylic acid and a dihydroxyanthraquinone.

What is the CAS number of Alizarin complexone?

The CAS registry number of Alizarin complexone is 3952-78-1.

What is the molecular formula and weight of Alizarin complexone?

The molecular formula of Alizarin complexone is C19H15NO8 and its molar mass is 385.33 g/mol.

What is Alizarin complexone used for?

Known uses and roles of Alizarin complexone include builders and chelants in home care and cleaning, indicators and stains in research and laboratory, colorimetric reagent and reagent.

Is Alizarin complexone hazardous?

Alizarin complexone carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Alizarin complexone?

Alizarin complexone is usually classified under HS code 292250 (Amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Alizarin complexone?

CompoundList lists 24 suppliers of Alizarin complexone in India, China, United States, Canada and 4 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Alizarin complexone in India?

7 suppliers in India list Alizarin complexone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Alizarin complexone?

Suppliers quote Alizarin complexone 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

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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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