CompoundList
Sign in
Heterocyclic building blocks

Ronopterin

Also known as 4-aminotetrahydrobiopterin, ronopterina, ronopterine

CAS 185243-78-1Formula C9H16N6O2Molar mass 240.27 g/mol
Get quotes Safety data
Ronopterin chemical structure, C9H16N6O2, CAS 185243-78-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
185243-78-1
Formula
C9H16N6O2
Molar mass
240.27 g/mol
HS code
293359
Category
Heterocyclic building blocks

What is Ronopterin?

Plain description, key identifiers and synonyms

Ronopterin is a chemical substance with the molecular formula C9H16N6O2 and a molar mass of 240.27 g/mol. Its CAS registry number is 185243-78-1. The IUPAC name is (1R,2S)-1-[(6R)-2,4-diamino-5,6,7,8-tetrahydropteridin-6-yl]propane-1,2-diol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R,2S)-1-[(6R)-2,4-diamino-5,6,7,8-tetrahydropteridin-6-yl]propane-1,2-diol
CAS number
185243-78-1
Molecular formula
C9H16N6O2
UNII
1D1Z87AY23
InChIKey
NDSDGUULXHNXGA-RPDRRWSUSA-N
InChI
InChI=1S/C9H16N6O2/c1-3(16)6(17)4-2-12-8-5(13-4)7(10)14-9(11)15-8/h3-4,6,13,16-17H,2H2,1H3,(H5,10,11,12,14,15)/t3-,4+,6-/m0/s1
SMILES
C[C@@H]([C@@H]([C@H]1CNC2=NC(=NC(=C2N1)N)N)O)O

Synonyms

  • 4-aminotetrahydrobiopterin
  • ronopterina
  • ronopterine
  • Ronopterin, (6R)-
  • (1R,2S)-1-[(6R)-2,4-diamino-5,6,7,8-tetrahydropteridin-6-yl]propane-1,2-diol
  • 1,2-Propanediol, 1-(2,4-diamino-1,5,6,7-tetrahydro-6-pteridinyl)-, (1R,2S)-
  • 1,2-Propanediol, 1-(2,4-diamino-5,6,7,8-tetrahydro-6-pteridinyl)-, (1R,2S)-
  • (1R,2S)-1-((6R)-2,4-Diamino-5,6,7,8-tetrahydropteridin-6-yl)propane-1,2-diol
  • ronopterinum
  • VAS 203
  • (1R,2S)-1-((R)-2,4-Diamino-5,6,7,8-tetrahydropteridin-6-yl)propane-1,2-diol
  • 2,4-diamino-5,6,7,8-tetrahydro-6(1,2-dihydroxypropyl)pteridine
  • 4-amino-H4biopterin
  • 4-Amino 5,6,7,8-tetrahydrobiopterin
  • (1R,2S)-1-((6R)-2,4-Diamino-5,6,7,8-tetrahydropteridin- 6-yl)propane-1,2-diol
  • 1,2-Propanediol, 1-((6R)-2,4-diamino-5,6,7,8-tetrahydro-6-pteridinyl)-, (1R,2S)-
  • (1R,2S)-1-(2,4-Diamino-5,6,7,8-tetrahydro-6-pteridinyl)-1,2-propanediol
  • (6R)-2,4-Diamino-5,6,7,8-tetrahydro-6-(-erythro-1,2-dihydroxypropyl)pteridine

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
240.27 g/molcalc.
Exact mass
240.1335 Dacalc.
LogP (octanol/water)
-1.41calc.
Topological polar surface area
142.3 Ųcalc.
Hydrogen bond donors
6calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
2calc.
Heavy atoms
17calc.
Rings
2calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.56calc.
Formal charge
0calc.
Stereocentres
3calc.
Lipinski rule of five
Passes (1 violation)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, c1ncc2c(n1)NCCN2

c1ncc2c(n1)NCCN2

2 rings, 10 atoms, the 5,6,7,8-Tetrahydropteridine ring system.

44 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.

Ronopterin suppliers

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

No supplier listings yet

Post one free request and suppliers who make or trade Ronopterin can send you quotes. Your contact details stay private until you accept a quote.

Request quotesSell this chemical

Ronopterin 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

  • neuroprotective agent
  • pharmaceutical
  • protective agent
  • renoprotective agent

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

Frequently asked questions

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

What is Ronopterin?

Ronopterin is a chemical substance with the molecular formula C9H16N6O2 and a molar mass of 240.27 g/mol. Its CAS registry number is 185243-78-1. The IUPAC name is (1R,2S)-1-[(6R)-2,4-diamino-5,6,7,8-tetrahydropteridin-6-yl]propane-1,2-diol.

What is the CAS number of Ronopterin?

The CAS registry number of Ronopterin is 185243-78-1.

What is the molecular formula and weight of Ronopterin?

The molecular formula of Ronopterin is C9H16N6O2 and its molar mass is 240.27 g/mol.

What is Ronopterin used for?

Known uses and roles of Ronopterin include building blocks in research and laboratory, screening compounds in research and laboratory, neuroprotective agent, pharmaceutical, protective agent and 1 more.

Is Ronopterin hazardous?

No GHS hazard classification for Ronopterin 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 Ronopterin?

Ronopterin 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 Ronopterin?

Post a free request on CompoundList and suppliers of Ronopterin will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Ronopterin?

Suppliers quote Ronopterin 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 Ronopterin

Get quotes for Ronopterin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Ronopterin
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 Ronopterin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/ronopterin-185243-78-1" title="Ronopterin 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 Heterocyclic building blocks or HS code 293359

Price on request
Free quotes, contact stays private
Get quotes