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Heterocyclic building blocks

Rasfonin

Also known as [(2R,3R)-2-[(E,2S,4R)-4,6-dimethyloct-6-en-2-yl]-6-oxo-2,3-dihydropyran-3-yl] (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methylocta-2,4-dienoate, ((2R,3R)-2-((E,2S,4R)-4,6-dimethyloct-6-en-2-yl)-6-oxo-2,3-dihydropyran-3-yl) (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methylocta-2,4-dienoate, (-)-Rasfonin

CAS 303156-68-5Formula C25H38O6Molar mass 434.57 g/mol
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Rasfonin chemical structure, C25H38O6, CAS 303156-68-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
303156-68-5
Formula
C25H38O6
Molar mass
434.57 g/mol
HS code
293220
Category
Heterocyclic building blocks

What is Rasfonin?

Plain description, key identifiers and synonyms

Rasfonin is an aliphatic alcohol.

Rasfonin is a polyketide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
[(2R,3R)-2-[(E,2S,4R)-4,6-dimethyloct-6-en-2-yl]-6-oxo-2,3-dihydropyran-3-yl] (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methylocta-2,4-dienoate
CAS number
303156-68-5
Molecular formula
C25H38O6
InChIKey
OHRGHFXATDKGOV-FXYCKZMJSA-N
InChI
InChI=1S/C25H38O6/c1-6-17(2)13-19(4)14-20(5)25-22(8-10-24(29)31-25)30-23(28)9-7-18(3)15-21(16-27)11-12-26/h6-10,15,19-22,25-27H,11-14,16H2,1-5H3/b9-7+,17-6+,18-15+/t19-,20-,21-,22+,25+/m0/s1
Canonical SMILES
CC=C(C)CC(C)CC(C)C1OC(=O)C=CC1OC(=O)C=CC(C)=CC(CO)CCO
Isomeric SMILES
C/C=C(\C)/C[C@H](C)C[C@H](C)[C@@H]1[C@@H](C=CC(=O)O1)OC(=O)/C=C/C(=C/[C@H](CCO)CO)/C

Synonyms

  • [(2R,3R)-2-[(E,2S,4R)-4,6-dimethyloct-6-en-2-yl]-6-oxo-2,3-dihydropyran-3-yl] (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methylocta-2,4-dienoate
  • ((2R,3R)-2-((E,2S,4R)-4,6-dimethyloct-6-en-2-yl)-6-oxo-2,3-dihydropyran-3-yl) (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methylocta-2,4-dienoate
  • (-)-Rasfonin
  • (?)-Rasfonin
  • (a?-Rasfonin
  • (-)-Rasfonin, TT-1
  • (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methyl-2,4-octadienoic acid, (2R,3R)-3,6-dihydro-6-oxo-2-[(1S,3R,5E)-1,3,5-trimethyl-5-hepten-1-yl]-2H-pyran-3-yl ester
  • [(2R,3R)-6-oxo-2-[(E,1S,3R)-1,3,5-trimethylhept-5-enyl]-2,3-dihydropyran-3-yl] (2E,4E,6S)-8-hydroxy-6-(hydroxymethyl)-4-methyl-octa-2,4-dienoate

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
434.57 g/molcalc.
Exact mass
434.2668 Dacalc.
LogP (octanol/water)
3.89calc.
Topological polar surface area
93.06 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
12calc.
Heavy atoms
31calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.6calc.
Formal charge
0calc.
Stereocentres
5calc.
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=C1C=CCCO1

O=C1C=CCCO1

1 ring, 7 atoms, the 5,6-Dihydro-2H-pyran-2-one ring system.

203 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.

Rasfonin suppliers

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Rasfonin 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

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 Rasfonin is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Rasfonin?

Rasfonin is an aliphatic alcohol.

What is the CAS number of Rasfonin?

The CAS registry number of Rasfonin is 303156-68-5.

What is the molecular formula and weight of Rasfonin?

The molecular formula of Rasfonin is C25H38O6 and its molar mass is 434.57 g/mol.

What is Rasfonin used for?

Known uses and roles of Rasfonin include building blocks in research and laboratory.

Is Rasfonin hazardous?

No GHS hazard classification for Rasfonin 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 Rasfonin?

Rasfonin is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Rasfonin?

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What is the price of Rasfonin?

Suppliers quote Rasfonin 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 Rasfonin

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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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