Milbemycin A4

Name: Milbemycin A4
Brand: Vaqora Chemicals
SKU: VQ-026695

About Milbemycin A4

Vaqora Chemicals supplies Milbemycin A4, an impurity of Milbemycin registered under CAS number 51596-11-3. The compound has the formula C32H46O7, corresponding to a molecular weight of 542.7 g/mol. Common synonyms include milbemycin alpha3 and Milbemectin M.A4.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Milbemycin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Milbemycin A4 is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Milbemycin

View every impurity, metabolite and intermediate we list for Milbemycin.

Milbemycin impurities

Specifications & identifiers

Chemical identifiers
Product name	Milbemycin A4
Catalogue No.	VQ-026695
CAS Number	51596-11-3
IUPAC name	(1R,4S,5'S,6R,6'R,8R,10E,13R,14E,16E,20R,21R,24S)-6'-ethyl-21,24-dihydroxy-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
Molecular formula	C₃₂H₄₆O₇
Molecular weight	542.7 g/mol
Exact mass	542.3244
Grade	Reference Standard
HSN code	38229090
InChIKey	VOZIAWLUULBIPN-LRBNAKOISA-N
SMILES	CC[C@@H]1[C@H](CC[C@@]2(O1)C[C@@H]3C[C@H](O2)C/C=C(/C[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)\C)C
PubChem CID	9959038

Physical properties
Physical form	Solid
LogP (XLogP3)	3.6
H-bond donors / acceptors	2 / 7
TPSA	94.5 Å²
Synonyms	Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-25-ethyl-, (6R,25R)-, milbemycin alpha3, Milbemectin M.A4, (6R,25R)-5-O-Demethyl-28-deoxy-6,28-epoxy-25-ethylmilbemycin B, EX-A6841

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Milbemycin A4?

The CAS Registry Number of Milbemycin A4 is 51596-11-3. It is also known as Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-25-ethyl-, (6R,25R)-, milbemycin alpha3, Milbemectin M.A4.

What is the molecular formula and molecular weight of Milbemycin A4?

Milbemycin A4 has the molecular formula C32H46O7 and a molecular weight of 542.7 g/mol.

What is Milbemycin A4 used for?

Milbemycin A4 is supplied as a characterised reference material related to Milbemycin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Milbemycin A4 can I order?

We supply Milbemycin A4 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Milbemycin A4?

Yes. Every lot of Milbemycin A4 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Milbemycin A4 be shipped internationally?

Yes. We export Milbemycin A4 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.