CompoundList
Sign in
Nucleosides and nucleotides

Hypoxanthine

Also known as 6-Hydroxypurine, 9H-Purin-6-ol, 7H-Purin-6-ol

CAS 68-94-0Formula C5H4N4OMolar mass 136.11 g/molEC 200-697-3
GHS signal word: Warning. Pictograms: Harmful or irritant 120 suppliers listed
Get quotes Compare 120 suppliers
Hypoxanthine chemical structure, C5H4N4O, CAS 68-94-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
68-94-0
Formula
C5H4N4O
Molar mass
136.11 g/mol
EC number
200-697-3
HS code
293359
Category
Nucleosides and nucleotides

What is Hypoxanthine?

Plain description, key identifiers and synonyms

Hypoxanthine is a purine nucleobase that consists of purine bearing an oxo substituent at position 6. It has a role as a fundamental metabolite. It is an oxopurine, a purine nucleobase and a nucleobase analogue. It is functionally related to an adenine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1,7-dihydropurin-6-one
CAS number
68-94-0 CAS number cross-checkedOther or deprecated CAS: 146445-70-7, 146469-94-5, 146469-95-6, 146469-96-7, 51953-04-9, 51953-23-2, 95121-06-5
EC number
200-697-3
Molecular formula
C5H4N4O
UNII
2TN51YD919
MDL number
MFCD00005725
InChIKey
FDGQSTZJBFJUBT-UHFFFAOYSA-N
InChI
InChI=1S/C5H4N4O/c10-5-3-4(7-1-6-3)8-2-9-5/h1-2H,(H2,6,7,8,9,10)
SMILES (canonical and isomeric)
C1=NC2=C(N1)C(=O)NC=N2

Synonyms

  • 6-Hydroxypurine
  • 9H-Purin-6-ol
  • 7H-Purin-6-ol
  • Sarkin
  • 3H-Purin-6-ol
  • Sarcine
  • 1,7-Dihydro-6H-purin-6-one
  • 6-Oxopurine
  • Sarkine
  • Hypoxanthine enol
  • Purin-6(1H)-one
  • 6-Hydroxy-1H-purine
  • Purin-6-ol
  • 9H-Purin-6(1H)-one
  • 6(1H)-Purinone
  • Purin-6(3H)-one
  • 6H-Purin-6-one, 1,7-dihydro-
  • Purine-6-ol
  • 6,7-dihydro-3H-purin-6-one
  • 1h-purin-6-ol
  • 1,9-dihydro-6H-purin-6-one
  • 1,7-Dihydro-6H-purine-6-one
  • 3,7-dihydropurin-6-one
  • 1H-Purin-6-ol (9CI)
  • 6H-Purin-6-one, 1,9-dihydro-
Show all 38 synonyms
  • Hypoxanthine (VAN)
  • 9H-Purin-6-ol (VAN)
  • 3h-hypoxanthine
  • 6H-Purin-6-one, 3,7-dihydro- (9CI)
  • HX
  • PDSP2_000297
  • Discontinued. See H998503 or H998504
  • Hypoxsanthine (1,7-Dihydro-6H-purin-6-one)
  • 1H-Purin-6(9H)-one
  • 1,7-Dihydro-6H-purin-6-one (Hypoxanthine)
  • purin-6(1H)-on
  • Hypoxanthinee
  • 6-hydroxypurin

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
136.11 g/molcalc.
Exact mass
136.0385 Dacalc.
LogP (octanol/water)
-0.35calc.
Topological polar surface area
74.43 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
10calc.
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=c1[nH]cnc2nc[nH]c12

O=c1[nH]cnc2nc[nH]c12

2 rings, 10 atoms. This chemical is the scaffold itself.

586 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

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (16)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • 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).
  • P332 + P317If skin irritation 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

Hypoxanthine suppliers

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

All 120 suppliers
30 of 30 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

120 suppliers in 16 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Hypoxanthine 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Roles

  • fundamental metabolite
  • metabolite

Pharmacology

Hypoxanthine is a purine-based organic compound in human muscle tissues, Hypoxanthine is formed during purine catabolism as a product of xanthine oxidase action on xanthine, and occasionally is found as a constituent of nucleic acids. The potent anti-inflammatory and cytoprotective effects of purines may be mediated by cell surface adenosine receptors. Hypoxanthine protects against oxidant-induced cell injury by inhibiting activation of nuclear poly(ADP-ribose) polymerase (PARP). (NCI04)

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 Hypoxanthine 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 Hypoxanthine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Hypoxanthine?

Hypoxanthine is a purine nucleobase that consists of purine bearing an oxo substituent at position 6. It has a role as a fundamental metabolite. It is an oxopurine, a purine nucleobase and a nucleobase analogue. It is functionally related to an adenine.

What is the CAS number of Hypoxanthine?

The CAS registry number of Hypoxanthine is 68-94-0. Other or deprecated CAS numbers: 146445-70-7, 146469-94-5, 146469-95-6.

What is the molecular formula and weight of Hypoxanthine?

The molecular formula of Hypoxanthine is C5H4N4O and its molar mass is 136.11 g/mol.

What is Hypoxanthine used for?

Known uses and roles of Hypoxanthine include fundamental metabolite and metabolite.

Is Hypoxanthine hazardous?

Hypoxanthine carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, may cause respiratory irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Hypoxanthine?

Hypoxanthine 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 Hypoxanthine?

CompoundList lists 120 suppliers of Hypoxanthine in China, United States, Germany, United Kingdom and 12 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Hypoxanthine in India?

1 supplier in India list Hypoxanthine on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Hypoxanthine?

Suppliers quote Hypoxanthine 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 Hypoxanthine

Get quotes for Hypoxanthine

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Hypoxanthine
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Hypoxanthine with a 3D view, its CAS number and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/hypoxanthine-68-94-0" title="Hypoxanthine structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Nucleosides and nucleotides or HS code 293359

120 suppliers
Free quotes, contact stays private
Get quotes