Pharmacopeial Impurities (EP / USP / BP)

Milbemycin EP Impurity C

Name: Milbemycin EP Impurity C
Brand: Zemixal
SKU: ZX-030613

Reference StandardAvailable on request

Order Milbemycin EP Impurity C (CAS 77855-81-3) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-030613.

Pack sizes

Milbemycin EP Impurity C chemical structure

CAS number77855-81-3

FormulaC₃₃H₄₈O₇

Molar mass556.7 g/mol

Physical formSolid

HS code38229090

InChIKeyBWCRYQGQPDBOAU-WZBVPYLGSA-N

IUPAC name(1R,4S,5'S,6R,6'R,8R,10E,13R,14E,16E,20R,21R,24S)-21,24-dihydroxy-5',11,13,22-tetramethyl-6'-propan-2-ylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one

About Milbemycin EP Impurity C

Analytical teams working on Milbemycin use Milbemycin EP Impurity C as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 77855-81-3, formula C33H48O7 and molar mass 556.7 g/mol. It is handled as a solid.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Milbemycin

See every impurity, metabolite and related compound we list for this API.

Milbemycin standards

Typical uses

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Milbemycin EP Impurity C
Product name	Milbemycin EP Impurity C
Catalogue number	ZX-030613
CAS number	77855-81-3
IUPAC name	(1R,4S,5'S,6R,6'R,8R,10E,13R,14E,16E,20R,21R,24S)-21,24-dihydroxy-5',11,13,22-tetramethyl-6'-propan-2-ylspiro[3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene-6,2'-oxane]-2-one
Molecular formula	C₃₃H₄₈O₇
Molar mass	556.7 g/mol
Exact mass	556.34
Grade	Reference Standard
Physical form	Solid
XLogP3	4.1
H-bond donors / acceptors	2 / 7
Topological polar surface area	94.5 Å²
HS code	38229090
InChIKey	BWCRYQGQPDBOAU-WZBVPYLGSA-N
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\CO[C@H]5[C@@]4([C@@H](C=C([C@H]5O)C)C(=O)O3)O)C)\C)O[C@@H]1C(C)C
PubChem CID	6440579
Synonyms	Milbemycin EP Impurity C (Free Base), Milbemycin Oxime - Impurity C, Milbemycin D, Antibiotic B 41D, B 41D, Milbemycin B, 5-O-demethyl-28-deoxy-6,28-epoxy-25-(1-methylethyl)-, (6R,25R)-, (6R,25)-5-O-Demethyl-28-deoxy-6,28-epoxy-25-(1-methylethyl)milbemycin B, (6R,25R)-5-O-demethyl-28-deoxy-6,28-epoxy-25-(1-methylethyl)milbemycin B, 5-O-demethyl-28-deoxy-6R,28-epoxy-25R-(1-methylethyl)-milbemycin B

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Milbemycin EP Impurity C
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Milbemycin EP Impurity C

Which CAS number identifies Milbemycin EP Impurity C?

Milbemycin EP Impurity C is registered under CAS 77855-81-3. You may also see it listed as Milbemycin EP Impurity C (Free Base), Milbemycin Oxime - Impurity C, Milbemycin D. Our catalogue number for this item is ZX-030613.

What are the formula and molar mass of Milbemycin EP Impurity C?

For Milbemycin EP Impurity C, its formula is C33H48O7 and its molar mass is 556.7 g/mol. InChIKey BWCRYQGQPDBOAU-WZBVPYLGSA-N lets you match it in any structure database.

How is Milbemycin EP Impurity C used in pharmaceutical QC?

Milbemycin EP Impurity C is a characterised reference material linked to Milbemycin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for Milbemycin EP Impurity C?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with Milbemycin EP Impurity C?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship Milbemycin EP Impurity C to my country?

Yes. Milbemycin EP Impurity C ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

More Milbemycin standards

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Milbemycin EP Impurity F

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MW: 526.7 g/mol

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Milbemycin A4 Oxime

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Formula: C₃₂H₄₅NO₇
MW: 555.7 g/mol

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Milbemycin A3

CAS: 51596-10-2
Formula: C₃₁H₄₄O₇
MW: 528.7 g/mol

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Milbemycin K

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Formula: C₃₂H₄₄O₇
MW: 540.7 g/mol

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Milbemycin A4

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MW: 542.7 g/mol

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Midazolam EP Impurity D

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