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Heterocyclic building blocks

Dimadectin (major component)

Also known as Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-13-((2-methoxyethoxy)methoxy)-25-((1S)-1-methylpropyl)-, (6R,13S,25R)-, 13-o-((2-Methoxyethoxy)methyl)ivermectin b1a aglycone

CAS 103968-19-0Formula C38H58O10Molar mass 674.87 g/mol
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Dimadectin (major component) chemical structure, C38H58O10, CAS 103968-19-0
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
103968-19-0
Formula
C38H58O10
Molar mass
674.87 g/mol
HS code
293220
Category
Heterocyclic building blocks

What is Dimadectin (major component)?

Plain description, key identifiers and synonyms

Dimadectin (major component) is a chemical substance with the molecular formula C38H58O10 and a molar mass of 674.87 g/mol. Its CAS registry number is 103968-19-0. The IUPAC name is (1R,4S,5'S,6R,6'R,8R,10E,12S,13S,14E,16E,20R,21R,24S)-6'-[(2S)-butan-2-yl]-21,24-dihydroxy-12-(2-methoxyethoxymethoxy)-5',11,13,22-tetramethylspiro[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,12S,13S,14E,16E,20R,21R,24S)-6'-[(2S)-butan-2-yl]-21,24-dihydroxy-12-(2-methoxyethoxymethoxy)-5',11,13,22-tetramethylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one
CAS number
103968-19-0 CAS number cross-checked
Molecular formula
C38H58O10
UNII
64C05B3JG4
InChIKey
ONEZYJLYSINXBJ-CKPQZXTHSA-N
InChI
InChI=1S/C38H58O10/c1-8-23(2)34-26(5)14-15-37(48-34)20-30-19-29(47-37)13-12-25(4)33(45-22-43-17-16-42-7)24(3)10-9-11-28-21-44-35-32(39)27(6)18-31(36(40)46-30)38(28,35)41/h9-12,18,23-24,26,29-35,39,41H,8,13-17,19-22H2,1-7H3/b10-9+,25-12+,28-11+/t23-,24-,26-,29+,30-,31-,32+,33-,34+,35+,37+,38+/m0/s1
Canonical SMILES
CCC(C)C1OC2(CCC1C)CC1CC(CC=C(C)C(OCOCCOC)C(C)C=CC=C3COC4C(O)C(C)=CC(C(=O)O1)C34O)O2
Isomeric SMILES
CC[C@H](C)[C@@H]1[C@H](CC[C@@]2(O1)C[C@@H]3C[C@H](O2)C/C=C(/[C@H]([C@H](/C=C/C=C/4\CO[C@H]5[C@@]4([C@@H](C=C([C@H]5O)C)C(=O)O3)O)C)OCOCCOC)\C)C

Synonyms

  • Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-13-((2-methoxyethoxy)methoxy)-25-((1S)-1-methylpropyl)-, (6R,13S,25R)-
  • 13-o-((2-Methoxyethoxy)methyl)ivermectin b1a aglycone

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
674.87 g/molcalc.
Exact mass
674.403 Dacalc.
LogP (octanol/water)
5.18calc.
Topological polar surface area
122.1 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
10calc.
Rotatable bonds
8calc.
Heavy atoms
48calc.
Rings
5calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.76calc.
Formal charge
0calc.
Stereocentres
12calc.
Lipinski rule of five
Fails (2 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=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.

Dimadectin (major component) suppliers

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

Frequently asked questions

Quick answers about Dimadectin (major component), based on the data on this page

What is Dimadectin (major component)?

Dimadectin (major component) is a chemical substance with the molecular formula C38H58O10 and a molar mass of 674.87 g/mol. Its CAS registry number is 103968-19-0.

What is the CAS number of Dimadectin (major component)?

The CAS registry number of Dimadectin (major component) is 103968-19-0.

What is the molecular formula and weight of Dimadectin (major component)?

The molecular formula of Dimadectin (major component) is C38H58O10 and its molar mass is 674.87 g/mol.

What is Dimadectin (major component) used for?

Known uses and roles of Dimadectin (major component) include building blocks in research and laboratory.

Is Dimadectin (major component) hazardous?

No GHS hazard classification for Dimadectin (major component) 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 Dimadectin (major component)?

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

Where can I buy Dimadectin (major component)?

Post a free request on CompoundList and suppliers of Dimadectin (major component) will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Dimadectin (major component)?

Suppliers quote Dimadectin (major component) 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 Dimadectin (major component)

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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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