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Screening compounds

27-Hydroxy milbemectin A3

Also known as 27-Hydroxy milbemycin a3

CAS 503432-06-2Formula C31H44O8Molar mass 544.69 g/mol
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27-Hydroxy milbemectin A3 chemical structure, C31H44O8, CAS 503432-06-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
503432-06-2
Formula
C31H44O8
Molar mass
544.69 g/mol
HS code
293220
Category
Screening compounds

What is 27-Hydroxy milbemectin A3?

Plain description, key identifiers and synonyms

27-Hydroxy milbemectin A3 is a chemical substance with the molecular formula C31H44O8 and a molar mass of 544.69 g/mol. Its CAS registry number is 503432-06-2. The IUPAC name is (1R,4S,5'S,6R,6'R,8R,10E,13R,14E,16Z,20R,21R,24S)-18,21,24-trihydroxy-5',6',11,13,22-pentamethylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(1R,4S,5'S,6R,6'R,8R,10E,13R,14E,16Z,20R,21R,24S)-18,21,24-trihydroxy-5',6',11,13,22-pentamethylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one
CAS number
503432-06-2
Molecular formula
C31H44O8
InChIKey
TYMMPWQKSSEJCA-KXEJHRFISA-N
InChI
InChI=1S/C31H44O8/c1-17-7-6-8-24-28(33)37-27-26(32)20(4)14-25(31(24,27)35)29(34)36-23-15-22(10-9-18(2)13-17)39-30(16-23)12-11-19(3)21(5)38-30/h6-9,14,17,19,21-23,25-28,32-33,35H,10-13,15-16H2,1-5H3/b7-6+,18-9+,24-8+/t17-,19-,21+,22+,23-,25-,26+,27+,28?,30-,31+/m0/s1
Canonical SMILES
CC1=CCC2CC(CC3(CCC(C)C(C)O3)O2)OC(=O)C2C=C(C)C(O)C3OC(O)C(=CC=CC(C)C1)C23O
Isomeric SMILES
C[C@H]1CC[C@]2(C[C@@H]3C[C@H](O2)C/C=C(/C[C@H](/C=C/C=C/4\C(O[C@H]5[C@@]4([C@@H](C=C([C@H]5O)C)C(=O)O3)O)O)C)\C)O[C@@H]1C

Synonyms

  • 27-Hydroxy milbemycin a3

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
544.69 g/molcalc.
Exact mass
544.3036 Dacalc.
LogP (octanol/water)
3.85calc.
Topological polar surface area
114.7 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
0calc.
Heavy atoms
39calc.
Rings
5calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.71calc.
Formal charge
0calc.
Stereocentres
11calc.
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, O=C1OC2CC(CC=CCCC=CC=C3COC4CC=CC1C34)OC1(CCCCO1)C2

O=C1OC2CC(CC=CCCC=CC=C3COC4CC=CC1C34)OC1(CCCCO1)C2

5 rings, 31 atoms.

53 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.

27-Hydroxy milbemectin A3 suppliers

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27-Hydroxy milbemectin A3 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 27-Hydroxy milbemectin A3 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 27-Hydroxy milbemectin A3 is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 27-Hydroxy milbemectin A3, based on the data on this page

What is 27-Hydroxy milbemectin A3?

27-Hydroxy milbemectin A3 is a chemical substance with the molecular formula C31H44O8 and a molar mass of 544.69 g/mol. Its CAS registry number is 503432-06-2.

What is the CAS number of 27-Hydroxy milbemectin A3?

The CAS registry number of 27-Hydroxy milbemectin A3 is 503432-06-2.

What is the molecular formula and weight of 27-Hydroxy milbemectin A3?

The molecular formula of 27-Hydroxy milbemectin A3 is C31H44O8 and its molar mass is 544.69 g/mol.

What is 27-Hydroxy milbemectin A3 used for?

Known uses and roles of 27-Hydroxy milbemectin A3 include building blocks in research and laboratory and screening compounds in research and laboratory.

Is 27-Hydroxy milbemectin A3 hazardous?

No GHS hazard classification for 27-Hydroxy milbemectin A3 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 27-Hydroxy milbemectin A3?

27-Hydroxy milbemectin A3 is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 27-Hydroxy milbemectin A3?

Post a free request on CompoundList and suppliers of 27-Hydroxy milbemectin A3 will send you quotes. Your contact details stay private until you accept a quote.

What is the price of 27-Hydroxy milbemectin A3?

Suppliers quote 27-Hydroxy milbemectin A3 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 27-Hydroxy milbemectin A3

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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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