CompoundList
Sign in
Cosmetic ingredients

(+)-Quassin

Also known as quassin, (1S,2S,6S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.02,7.013,17]heptadeca-4,14-diene-3,11,16-trione, Picrasa-2,12-diene-1,11,16-trione, 2,12-dimethoxy-

CAS 76-78-8Formula C22H28O6Molar mass 388.46 g/molEC 200-985-9
GHS signal word: Warning. Pictograms: Harmful or irritant 3 suppliers listed
Get quotes Compare 3 suppliers
(+)-Quassin chemical structure, C22H28O6, CAS 76-78-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
76-78-8
Formula
C22H28O6
Molar mass
388.46 g/mol
EC number
200-985-9
HS code
293220
Category
Cosmetic ingredients

What is (+)-Quassin?

Plain description, key identifiers and synonyms

Quassin is a triterpenoid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1S,2S,6S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.02,7.013,17]heptadeca-4,14-diene-3,11,16-trione
CAS number
76-78-8 CAS number cross-checked
EC number
200-985-9
Molecular formula
C22H28O6
UNII
QP1YAK6QGK
INCI name
QUASSIN
InChIKey
IOSXSVZRTUWBHC-LBTVDEKVSA-N
InChI
InChI=1S/C22H28O6/c1-10-7-14(26-5)20(25)22(4)12(10)8-15-21(3)13(9-16(23)28-15)11(2)18(27-6)17(24)19(21)22/h7,10,12-13,15,19H,8-9H2,1-6H3/t10-,12+,13+,15-,19+,21-,22+/m1/s1
Canonical SMILES
COC1=CC(C)C2CC3OC(=O)CC4C(C)=C(OC)C(=O)C(C2(C)C1=O)C34C
Isomeric SMILES
C[C@@H]1C=C(C(=O)[C@]2([C@H]1C[C@@H]3[C@@]4([C@@H]2C(=O)C(=C([C@@H]4CC(=O)O3)C)OC)C)C)OC

Synonyms

  • quassin
  • (1S,2S,6S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.02,7.013,17]heptadeca-4,14-diene-3,11,16-trione
  • Picrasa-2,12-diene-1,11,16-trione, 2,12-dimethoxy-
  • (1S,2S,6S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo(7.7.1.02,7.013,17)heptadeca-4,14-diene-3,11,16-trione
  • Nigakilactone D
  • Quassine
  • Quassin (~90%)
  • Quassin (>95%)
  • Quassin (Mixture of Quassin, Isoquassin and Neoquassin)
  • (3AS,6aR,7aS,8S,11aS,11bS,11cS)-1,3a,4,5,6a,7,7a,8,11,11a,11b,11c-dodecahydro-2,10-dimethoxy-3,8,11a,11c-tetramethyldibenzo(de,g)chromene-1,5,11-trione
  • Anti-infection
  • Quassins(AS)
  • Quassin (Standard)
  • Quassin - 92%
  • Quassin - 98%
  • dimethoxy(tetramethyl)[?]trione
  • (1S,2S,6S,7S,9R,13R,17S)-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0^{2,7}.0^{13,17}]heptadeca-4,14-diene-3,11,16-trione

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
388.46 g/molcalc.
Exact mass
388.1886 Dacalc.
LogP (octanol/water)
2.82calc.
Topological polar surface area
78.9 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
2calc.
Heavy atoms
28calc.
Rings
4calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.68calc.
Formal charge
0calc.
Stereocentres
7calc.
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=C1CC2C=CC(=O)C3C4C(=O)C=CCC4CC(O1)C23

O=C1CC2C=CC(=O)C3C4C(=O)C=CCC4CC(O1)C23

4 rings, 20 atoms.

3 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.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
Precautionary statements (13)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

(+)-Quassin suppliers

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

All 3 suppliers

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

3 suppliers in 1 country

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

(+)-Quassin 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

Use classes: Cosmetics.

Cosmetic ingredient, INCI name QUASSIN(denaturant)

Cosmetic functions

  • Denaturant

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Inactive 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 (+)-Quassin 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 (+)-Quassin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about (+)-Quassin, based on the data on this page

What is (+)-Quassin?

Quassin is a triterpenoid.

What is the CAS number of (+)-Quassin?

The CAS registry number of (+)-Quassin is 76-78-8.

What is the molecular formula and weight of (+)-Quassin?

The molecular formula of (+)-Quassin is C22H28O6 and its molar mass is 388.46 g/mol.

What is (+)-Quassin used for?

Use classes: Cosmetics.

Is (+)-Quassin hazardous?

(+)-Quassin carries the GHS signal word "Warning". Main hazards: harmful if swallowed, harmful in contact with skin, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of (+)-Quassin?

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

Where can I buy (+)-Quassin?

CompoundList lists 3 suppliers of (+)-Quassin in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of (+)-Quassin?

Suppliers quote (+)-Quassin 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 (+)-Quassin

Get quotes for (+)-Quassin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell (+)-Quassin
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 (+)-Quassin 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/quassin-76-78-8" title="(+)-Quassin 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 Cosmetic ingredients or HS code 293220

3 suppliers
Free quotes, contact stays private
Get quotes