25 - Desacetyl Rifampicin | CAS 16783-99-6

Name: 25 - Desacetyl Rifampicin
Brand: Vaqora Chemicals
SKU: VQ-023633

About 25 - Desacetyl Rifampicin

25 - Desacetyl Rifampicin (CAS 16783-99-6) is a stable isotope labelled analogue related to Rifampicin offered by Vaqora Chemicals. With the molecular formula C41H56N4O11, it has a molar mass of 780.9 g/mol. Alternative names: Desacetylrifampicin and 25-Desacetylrifampin.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

Its mass shift relative to the unlabelled analyte makes it a dependable internal standard for LC-MS/MS assays, improving accuracy in bioanalysis, therapeutic drug monitoring and method validation. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Rifampicin

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

Rifampicin impurities

Specifications & identifiers

Chemical identifiers
Product name	25 - Desacetyl Rifampicin
Catalogue No.	VQ-023633
CAS Number	16783-99-6
IUPAC name	(7S,9E,11S,12S,13S,14R,15R,16R,17S,18S,19E,21Z)-2,13,15,17,27,29-hexahydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-26-[(E)-(4-methylpiperazin-1-yl)iminomethyl]-8,30-dioxa-24-azatetracyclo[23.3.1.14,7.05,28]triaconta-1(29),2,4,9,19,21,25,27-octaene-6,23-dione
Molecular formula	C₄₁H₅₆N₄O₁₁
Molecular weight	780.9 g/mol
Exact mass	780.3946
Grade	Reference Standard
HSN code	38229090
InChIKey	KUJZTIJOBQNKDR-OACVHIRKSA-N
SMILES	C[C@H]1/C=C/C=C(\C(=O)NC2=C(C(=C3C(=C2O)C(=C(C4=C3C(=O)[C@](O4)(O/C=C/[C@@H]([C@H]([C@H]([C@@H]([C@@H]([C@@H]([C@H]1O)C)O)C)O)C)OC)C)C)O)O)/C=N/N5CCN(CC5)C)/C
PubChem CID	135542225

Physical properties
Physical form	Solid
LogP (XLogP3)	4.3
H-bond donors / acceptors	7 / 14
TPSA	214 Å²
Synonyms	Desacetylrifampicin, 25-Desacetylrifampin, 25-Deacetylrifampicin, Deacetylrifampicin, 25-Deacetylrifampin, Deacetylrifampin, Rifamycin, 25-O-deacetyl-3-[(E)-[(4-methyl-1-piperazinyl)imino]methyl]-, 25-O-Desacetylrifampin, 25-O-Deacetylrifampicin

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 25 - Desacetyl Rifampicin?

The CAS Registry Number of 25 - Desacetyl Rifampicin is 16783-99-6. It is also known as Desacetylrifampicin, 25-Desacetylrifampin, 25-Deacetylrifampicin.

What is the molecular formula and molecular weight of 25 - Desacetyl Rifampicin?

25 - Desacetyl Rifampicin has the molecular formula C41H56N4O11 and a molecular weight of 780.9 g/mol.

What is 25 - Desacetyl Rifampicin used for?

25 - Desacetyl Rifampicin is supplied as a characterised reference material related to Rifampicin. 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 25 - Desacetyl Rifampicin can I order?

We supply 25 - Desacetyl Rifampicin 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 25 - Desacetyl Rifampicin?

Yes. Every lot of 25 - Desacetyl Rifampicin 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 25 - Desacetyl Rifampicin be shipped internationally?

Yes. We export 25 - Desacetyl Rifampicin worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.