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Alkaloids

Proxyphylline

Also known as Purophyllin, Brontyl, 7-(2-Hydroxypropyl)theophylline

CAS 603-00-9Formula C10H14N4O3Molar mass 238.25 g/molEC 210-028-7
GHS signal word: Warning. Pictograms: Harmful or irritant 9 suppliers listed
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Proxyphylline chemical structure, C10H14N4O3, CAS 603-00-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
603-00-9
Formula
C10H14N4O3
Molar mass
238.25 g/mol
EC number
210-028-7
HS code
293959
Category
Alkaloids

What is Proxyphylline?

Plain description, key identifiers and synonyms

Proxyphylline is an oxopurine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
7-(2-hydroxypropyl)-1,3-dimethylpurine-2,6-dione
CAS number
603-00-9 CAS number cross-checked
EC number
210-028-7
Molecular formula
C10H14N4O3
UNII
13G1DMN4P0
MDL number
MFCD00022833
InChIKey
KYHQZNGJUGFTGR-UHFFFAOYSA-N
InChI
InChI=1S/C10H14N4O3/c1-6(15)4-14-5-11-8-7(14)9(16)13(3)10(17)12(8)2/h5-6,15H,4H2,1-3H3
SMILES (canonical and isomeric)
CC(CN1C=NC2=C1C(=O)N(C(=O)N2C)C)O

Synonyms

  • Purophyllin
  • Brontyl
  • 7-(2-Hydroxypropyl)theophylline
  • Proxiphylline
  • Spasmolysin
  • Theoden
  • Oxypropyltheophylline
  • Sigophyl
  • Thean
  • Theon
  • Proxifilina
  • Spantin
  • beta-Oxypropyltheophyllin
  • 2-Hydroxypropyl-7-theophylline
  • Monophyllin
  • Proxyphyllinum
  • 1,3-Dimethyl-7-(2-hydroxypropyl)xanthine
  • 1H-Purine-2,6-dione, 3,7-dihydro-7-(2-hydroxypropyl)-1,3-dimethyl-
  • 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-7-(2-hydroxypropyl)-
  • 7-(2-hydroxypropyl)-1,3-dimethyl-2,3,6,7-tetrahydro-1H-purine-2,6-dione
  • proxifillina
  • Monophylline
  • Sanwaphyllin
  • Proxy-Retardoral
  • Hydroxypropyltheophylline
Show all 36 synonyms
  • Proxylphylline
  • 7-(beta-Hydroxypropyl)theophylline
  • Theophylline, 7-(2-hydroxypropyl)-
  • Proxyphyline
  • 7-(2-Hydroxypropyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione
  • 7-(2-Hydroxypropyl)-1,3-dimethyl-1H-purine-2,6(3H,7H)-dione
  • beta-Hydroxypropyltheophylline
  • 3,7-Dihydro-7-(2-hydroxypropyl)-1,3-dimethyl-1H-purine-2,6-dione
  • 7-(2-hydroxypropyl)-1,3-dimethylpurine-2,6-dione
  • 7-(b-Hydroxypropyl)theophylline
  • PDSP2_001116

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
238.25 g/molcalc.
Exact mass
238.1066 Dacalc.
LogP (octanol/water)
-1.19calc.
Topological polar surface area
82.05 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.5calc.
Formal charge
0calc.
Stereocentres
1calc.
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]c(=O)c2[nH]cnc2[nH]1

O=c1[nH]c(=O)c2[nH]cnc2[nH]1

2 rings, 11 atoms, the Xanthine ring system.

1,880 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.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Proxyphylline suppliers

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

All 9 suppliers
9 of 9 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

9 suppliers in 5 countries

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Proxyphylline 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

Use classes: Pharmaceuticals.

Pharmacological actions

  • Bronchodilator Agents

Pharmacology

Proxyphylline is a methylxanthine and derivative of theophylline. Proxyphylline relaxes smooth muscles, particularly bronchial muscles. This xanthine most likely exerts its effect by inhibiting cAMP or cGMP phosphodiesterases, thereby increasing levels of the second messenger cAMP or cGMP intracellularly. Other mode of actions include an adenosine antagonistic effect on the activity of CD4 lymphocytes and mediator release from mast cells thereby decreasing lung sensitivity to allergens and other substances that cause inflammation. Proxyphylline also acts as a CNS stimulant and exerts a positive chronotropic and inotropic effect on the heart.

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 Proxyphylline is traded under.

HS 2939.59Indicative HS code

Theophylline and aminophylline (theophylline-ethylenediamine) and their derivatives…

World exports in 2024
$56M
+6.9% vs 2023, imports $62.2M
2019 to 2024
Top exporters
  1. India * partner reported46.2%
  2. China22.9%
  3. Italy14.5%
Top importers
  1. United States10.4%
  2. Italy9.2%
  3. South Korea7.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Proxyphylline?

Proxyphylline is an oxopurine.

What is the CAS number of Proxyphylline?

The CAS registry number of Proxyphylline is 603-00-9.

What is the molecular formula and weight of Proxyphylline?

The molecular formula of Proxyphylline is C10H14N4O3 and its molar mass is 238.25 g/mol.

What is Proxyphylline used for?

Use classes: Pharmaceuticals.

Is Proxyphylline hazardous?

Proxyphylline carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Proxyphylline?

Proxyphylline is usually classified under HS code 293959 (Theophylline and aminophylline (theophylline-ethylenediamine) and their derivatives…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Proxyphylline?

CompoundList lists 9 suppliers of Proxyphylline in China, United States, Czech Republic, India and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Proxyphylline in India?

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

What is the price of Proxyphylline?

Suppliers quote Proxyphylline 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 Proxyphylline

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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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