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Cosmetic colorants and hair dyes

Xanthopterin

Also known as 2-amino-3,5-dihydropteridine-4,6-dione, 2-amino-1,5-dihydropteridine-4,6-dione, 2-Amino-4,6-dihydroxypteridine

CAS 119-44-8Formula C6H5N5O2Molar mass 179.14 g/molEC 204-325-0
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Xanthopterin chemical structure, C6H5N5O2, CAS 119-44-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
119-44-8
Formula
C6H5N5O2
Molar mass
179.14 g/mol
EC number
204-325-0
HS code
293359
Category
Cosmetic colorants and hair dyes

What is Xanthopterin?

Plain description, key identifiers and synonyms

2-amino-4,6-pteridinediol is a member of pterins.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-amino-3,5-dihydropteridine-4,6-dione
CAS number
119-44-8 CAS number cross-checked
EC number
204-325-0
Molecular formula
C6H5N5O2
UNII
V66551EU1R
MDL number
MFCD00151241
INCI name
XANTHOPTERIN
InChIKey
VURKRJGMSKJIQX-UHFFFAOYSA-N
InChI
InChI=1S/C6H5N5O2/c7-6-10-4-3(5(13)11-6)9-2(12)1-8-4/h1H,(H,9,12)(H3,7,8,10,11,13)
SMILES (canonical and isomeric)
C1=NC2=C(C(=O)NC(=N2)N)NC1=O

Synonyms

  • 2-amino-3,5-dihydropteridine-4,6-dione
  • 2-amino-1,5-dihydropteridine-4,6-dione
  • 2-Amino-4,6-dihydroxypteridine
  • 2-Amino-1,5-dihydro-4,6-pteridinedione
  • 4,6-Pteridinedione, 2-amino-1,5-dihydro-
  • Ksantopterin
  • 2-Amino-4,6-pteridinediol
  • Yeast powder
  • 2-Aminopteridine-4,6-diol
  • 4,6-pteridinedione, 2-amino-3,5-dihydro-
  • 2-Amino-4,5-b]pyrazine
  • 4, 2-amino-1,5-dihydro-
  • 6-hydroxypterin
  • 2-amino-1,4,5,6-tetrahydropteridine-4,6-dione
  • Xanthopterinmonohydrat
  • 2-Aminopteridine-4(3H),6(5H)-dione
  • 2-amino-3,5-dihydro-pteridine-4,6-dione
  • 2-Amino-4,6-dihydroxypyrimido(4,5-b)pyrazine
  • DivK1c_006406
  • 4,6-Pteridinediol, 2-amino-
  • pteridine, 2-amino-4,6-dihydroxy-
  • Sdccgmls-0066573.p001
  • pteridine-4,6(1H,5H)-dione, 2-amino-
  • 4-hydroxy-2-imino-1,2,5,6-tetrahydropteridin-6-one
  • XTN

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
179.14 g/molcalc.
Exact mass
179.0443 Dacalc.
LogP (octanol/water)
-1.41calc.
Topological polar surface area
117.5 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
0calc.
Heavy atoms
13calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
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=c1cnc2nc[nH]c(=O)c2[nH]1

O=c1cnc2nc[nH]c(=O)c2[nH]1

2 rings, 12 atoms, the 3,5-Dihydro-pteridine-4,6-dione ring system.

6 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Xanthopterin suppliers

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

All 7 suppliers
7 of 7 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

7 suppliers in 5 countries

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Xanthopterin 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

Cosmetic ingredient, INCI name XANTHOPTERIN(colorant)

Cosmetic functions

  • Colorant

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Xanthopterin?

2-amino-4,6-pteridinediol is a member of pterins.

What is the CAS number of Xanthopterin?

The CAS registry number of Xanthopterin is 119-44-8.

What is the molecular formula and weight of Xanthopterin?

The molecular formula of Xanthopterin is C6H5N5O2 and its molar mass is 179.14 g/mol.

What is Xanthopterin used for?

Known uses and roles of Xanthopterin include colorants in cosmetics and personal care and colorant.

Is Xanthopterin hazardous?

No GHS hazard classification for Xanthopterin is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Xanthopterin?

Xanthopterin is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Xanthopterin?

CompoundList lists 7 suppliers of Xanthopterin in China, Hong Kong, Australia, Netherlands and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Xanthopterin?

Suppliers quote Xanthopterin 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 Xanthopterin

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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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