13-O-(Triethylsilyl) Baccatin III

Name: 13-O-(Triethylsilyl) Baccatin III
Brand: Zemixal
SKU: ZX-022475

Reference StandardAvailable on request

Buy 13-O-(Triethylsilyl) Baccatin III (CAS 208406-86-4) from Zemixal: C37H52O11Si, COA and SDS with every lot, worldwide shipping.

Pack sizes

13-O-(Triethylsilyl) Baccatin III chemical structure

CAS number208406-86-4

FormulaC₃₇H₅₂O₁₁Si

Molar mass700.9 g/mol

Physical formSolid

HS code38229090

InChIKeyNKNHZPLYHAABLP-UZBMNOCMSA-N

IUPAC name[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-diacetyloxy-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-15-triethylsilyloxy-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate

About 13-O-(Triethylsilyl) Baccatin III

Zemixal lists 13-O-(Triethylsilyl) Baccatin III for laboratories that identify, quantify or control Paclitaxel and its related substances. Key data (Reference Standard): CAS 208406-86-4, formula C37H52O11Si and molar mass 700.9 g/mol. It is handled as a solid.

Use cases we see most often

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

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Paclitaxel

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

Paclitaxel standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 13-O-(Triethylsilyl) Baccatin III
Product name	13-O-(Triethylsilyl) Baccatin III
Catalogue number	ZX-022475
CAS number	208406-86-4
IUPAC name	[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-diacetyloxy-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-15-triethylsilyloxy-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate
Molecular formula	C₃₇H₅₂O₁₁Si
Molar mass	700.9 g/mol
Exact mass	700.3279
Grade	Reference Standard
Physical form	Solid
H-bond donors / acceptors	2 / 11
Topological polar surface area	155 Å²
HS code	38229090
InChIKey	NKNHZPLYHAABLP-UZBMNOCMSA-N
SMILES	CC[Si](CC)(CC)O[C@H]1C[C@]2([C@H]([C@H]3[C@@]([C@H](C[C@@H]4[C@]3(CO4)OC(=O)C)O)(C(=O)[C@@H](C(=C1C)C2(C)C)OC(=O)C)C)OC(=O)C5=CC=CC=C5)O
PubChem CID	71752652
Synonyms	Paclitaxel 13-Tes-Baccatin III, 13-TES-Baccatin III

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 13-O-(Triethylsilyl) Baccatin III
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 13-O-(Triethylsilyl) Baccatin III

Which CAS number identifies 13-O-(Triethylsilyl) Baccatin III?

13-O-(Triethylsilyl) Baccatin III is registered under CAS 208406-86-4. You may also see it listed as Paclitaxel 13-Tes-Baccatin III, 13-TES-Baccatin III. Our catalogue number for this item is ZX-022475.

What are the formula and molar mass of 13-O-(Triethylsilyl) Baccatin III?

For 13-O-(Triethylsilyl) Baccatin III, its formula is C37H52O11Si and its molar mass is 700.9 g/mol. InChIKey NKNHZPLYHAABLP-UZBMNOCMSA-N lets you match it in any structure database.

How is 13-O-(Triethylsilyl) Baccatin III used in pharmaceutical QC?

13-O-(Triethylsilyl) Baccatin III is a characterised reference material linked to Paclitaxel. 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 13-O-(Triethylsilyl) Baccatin III?

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 13-O-(Triethylsilyl) Baccatin III?

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 13-O-(Triethylsilyl) Baccatin III to my country?

Yes. 13-O-(Triethylsilyl) Baccatin III ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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