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T1912

Paclitaxel

Name: Paclitaxel
Brand: SIGMA

From Taxus yannanensis, Apoptosis inducer, powder

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About This Item

Empirical Formula (Hill Notation):

C₄₇H₅₁NO₁₄

CAS Number:

33069-62-4

Molecular Weight:

853.91

NACRES:

NA.77

PubChem Substance ID:

24899998

UNSPSC Code:

12161501

MDL number:

MFCD00869953

Beilstein/REAXYS Number:

1420457

Form:

powder

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Properties

Product Name

Paclitaxel, from Taxus yannanensis, powder

biological source

Taxus yannanensis

Quality Segment

200

form

powder

color

white

mp

213 °C (dec.) (lit.)

solubility

DMSO: 50 mg/mL (can be stored frozen for several months), acetonitrile: soluble, ethanol: soluble, methanol: soluble (undergoes transesterification)

antibiotic activity spectrum

neoplastics

mode of action

DNA synthesis | interferes

originator

Bristol-Myers Squibb

storage temp.

2-8°C

SMILES string

[H][C@@]12C[C@H](O)[C@@]3(C)C(=O)[C@H](OC(C)=O)C4=C(C)[C@H](C[C@@](O)([C@@H](OC(=O)c5ccccc5)[C@]3([H])[C@@]1(CO2)OC(C)=O)C4(C)C)OC(=O)[C@H](O)[C@@H](NC(=O)c6ccccc6)c7ccccc7

InChI

1S/C47H51NO14/c1-25-31(60-43(56)36(52)35(28-16-10-7-11-17-28)48-41(54)29-18-12-8-13-19-29)23-47(57)40(61-42(55)30-20-14-9-15-21-30)38-45(6,32(51)22-33-46(38,24-58-33)62-27(3)50)39(53)37(59-26(2)49)34(25)44(47,4)5/h7-21,31-33,35-38,40,51-52,57H,22-24H2,1-6H3,(H,48,54)/t31-,32-,33+,35-,36+,37+,38-,40-,45+,46-,47+/m0/s1

InChI key

RCINICONZNJXQF-MZXODVADSA-N

Gene Information

human ... BCL2(596), TUBA1A(7846), TUBA1B(10376), TUBA1C(84790), TUBA3C(7278), TUBA3E(112714), TUBA4A(7277), TUBB(203068), TUBB1(81027), TUBB2A(7280), TUBB2B(347733), TUBB3(10381), TUBB4A(10382), TUBB4B(10383), TUBB6(84617), TUBB8(347688)

Description

General description

Chemical structure: taxoide

Application

Paclitaxel has been used to study PREP2-tubulin interactions using coimmunoprecipitation assays on NIH3T3 cell extracts. This drug has also been used to stabilize tubulin obtained from pig brain.

Biochem/physiol Actions

Paclitaxel is a potent anti-neoplastic and anti-mitotic taxane drug, which binds to the N-terminus of β-tubulin and and stabilizes microtubules arresting the cell cycle at the G2/M phase.

Paclitaxel is a potent anti-neoplastic and anti-mitotic taxane drug, which binds to the N-terminus of β-tubulin and and stabilizes microtubules arresting the cell cycle at the G2/M phase. The microtubule damage induces apoptosis through a JNK-dependent pathway followed by a JNK-independent pathway, perhaps related to the activation of protein kinase A (PKA) or of Raf-1 kinase, resulting in phosphorylation of Bcl-2. A major metabolite via CYP2CB is 6α-hydroxypaclitaxel (6α-OHP).

Features and Benefits

This compound is a featured product for ADME Tox research. Click here to discover more featured ADME Tox products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.

This compound was developed by Bristol-Myers Squibb. To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Preparation Note

Paclitaxel is soluble in DMSO at 50 mg/ml and can be stored frozen for several months. It is also soluble in methanol (undergoes transesterification), acetonitrile and ethanol. Paclitaxel is rapidly destroyed in weakly alkaline, methanolic solutions and in strongly acidic methanolic solutions (1:1 of methanol:concentrated HCl). It is also soluble in a mixture of 50% Cremophor EL and 50% anhydrous ethanol.

Disclaimer

Paclitaxel undergoes transesterification in methanol and hydrolyzes in aqueous solutions.

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Pictograms

GHS08

Signal Word

Danger

Hazard Codes

H341,H360FD,H372

Precautionary Statements

P202 - P260 - P264 - P280 - P308 + P313 - P405

Hazard Classifications

Muta. 2 - Repr. 1B - STOT RE 1

Target Organs

Central nervous system,Bone marrow,Cardio-vascular system

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)