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10-Deacetyltaxol

Alias: 10-Deacetylpaclitaxel; 10-Deacetyltaxol; 10-Desacetyl Paclitaxel; 10-Deacetylpaclitaxel; 10-deacetyl-paclitaxel; 10-Desacetyltaxol; B77R96LJLK; 10-Deacetyltaxol
Cat No.:V29322 Purity: ≥98%
10-Deacetyltaxol (also called 10-Deacetylpaclitaxel), the 10-deacetylated form of paclitaxel, is a taxane analogue andimpurity of Paclitaxel extracted from Taxus wallichiana Zucc with anticancer activities.
10-Deacetyltaxol
10-Deacetyltaxol Chemical Structure CAS No.: 78432-77-6
Product category: Microtubule(Tubulin)
This product is for research use only, not for human use. We do not sell to patients.
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Product Description

10-Deacetyltaxol (also called 10-Deacetylpaclitaxel), the 10-deacetylated form of paclitaxel, is a taxane analogue and impurity of Paclitaxel extracted from Taxus wallichiana Zucc with anticancer activities. It functions as a disruptor, inhibitor, and stabilizer of microtubules.

Biological Activity I Assay Protocols (From Reference)
Targets
Tubulin; impurity of taxol
ln Vitro
Activity-guided, chromatographic fractionation for a polar extract of Taxus wallichiana Zucc. (originally identified as Cephalotaxus mannii Hook.) resulted in the isolation of three new KB cytotoxic taxane derivatives. Nmr and ms spectral analyses permitted their characterization as 19-hydroxybaccatin III (3), 10-deacetylcephalomannine (4), and 10-deacetyltaxol (5). The latter two compounds, which are also active against PS leukemia in vivo, were observed to be especially labile, each forming equilibrium mixtures with their cytotoxic C-7 epimers (9, 10)[1].
Cell Assay
The cytotoxic effects of taxol, 10-deacetyltaxol, and cephalomannine at concentrations of 0.1 mug/ml to 10.0 mug/ml for one and 24 hours exposure were determined in two human glioblastoma multiforme and two neuroblastoma cell lines using the MTT method. The neuroblastoma cell lines were established from previously treated patients, while the glioblastomas were from untreated patients. There was a proportionate concentration-toxicity relationship for all four cell lines. The neuroblastoma SK-N-FI was consistently the most resistant to all three drugs. The order of potency after a one hour exposure was taxol, 10-deacetyltaxol and cephalomannine. Cephalomannine contained 1.5% taxol impurity and 10-deacetyltaxol, 4.5% taxol hence the contribution of taxol to these substances' toxic effects was minimal. We conclude that tumors of the central and peripheral nervous system are sensitive to 10-deacetyltaxol and cephalomannine and these drugs are less toxic than taxol but remain within a therapeutic range[3].
References

[1]. 19-Hydroxybaccatin III, 10-deacetylcephalomannine, and 10-deacetyltaxol: new antitumor taxanes from Taxus wallichiana. J Nat Prod. 1981 May-Jun;44(3):312-9.

[2]. Process for the preparation of taxol and 10-deacetyltaxol. US4857653A.

[3]. Cephalomannine and 10-deacetyltaxol cytotoxicity in human glial and neuroblastoma cell-lines. Int J Oncol. 1993 Feb;2(2):297-9.

Additional Infomation
Deacetyltaxol is a taxane diterpenoid.
10-Deacetyltaxol has been reported in Taxus cuspidata, Corylus avellana, and other organisms with data available.
10-Deacetyltaxol is an analog of paclitaxel with antineoplastic activity. 10-Deacetyltaxol binds to and stabilizes the resulting microtubules, thereby inhibiting microtubule disassembly which results in cell- cycle arrest at the G2/M phase and apoptosis.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C₄₅H₄₉NO₁₃
Molecular Weight
811.87
Exact Mass
811.32
CAS #
78432-77-6
Related CAS #
78432-77-6
PubChem CID
155831
Appearance
White to off-white solid powder
Density
1.4±0.1 g/cm3
Boiling Point
959.5±65.0 °C at 760 mmHg
Melting Point
182-184ºC
Flash Point
534.1±34.3 °C
Vapour Pressure
0.0±0.3 mmHg at 25°C
Index of Refraction
1.652
LogP
6.74
Hydrogen Bond Donor Count
5
Hydrogen Bond Acceptor Count
13
Rotatable Bond Count
12
Heavy Atom Count
59
Complexity
1680
Defined Atom Stereocenter Count
11
SMILES
O1C([H])([H])[C@@]2([C@@]1([H])C([H])([H])[C@]([H])([C@@]1(C([H])([H])[H])C([C@]([H])(C3=C(C([H])([H])[H])[C@]([H])(C([H])([H])[C@](C3(C([H])([H])[H])C([H])([H])[H])([C@]([H])([C@]21[H])OC(C1C([H])=C([H])C([H])=C([H])C=1[H])=O)O[H])OC([C@@]([H])([C@]([H])(C1C([H])=C([H])C([H])=C([H])C=1[H])N([H])C(C1C([H])=C([H])C([H])=C([H])C=1[H])=O)O[H])=O)O[H])=O)O[H])OC(C([H])([H])[H])=O
InChi Key
TYLVGQKNNUHXIP-MHHARFCSSA-N
InChi Code
InChI=1S/C45H49NO13/c1-24-29(57-41(54)35(50)33(26-15-9-6-10-16-26)46-39(52)27-17-11-7-12-18-27)22-45(55)38(58-40(53)28-19-13-8-14-20-28)36-43(5,37(51)34(49)32(24)42(45,3)4)30(48)21-31-44(36,23-56-31)59-25(2)47/h6-20,29-31,33-36,38,48-50,55H,21-23H2,1-5H3,(H,46,52)/t29-,30-,31+,33-,34+,35+,36-,38-,43+,44-,45+/m0/s1
Chemical Name
[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-acetyloxy-15-[(2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoyl]oxy-1,9,12-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate
Synonyms
10-Deacetylpaclitaxel; 10-Deacetyltaxol; 10-Desacetyl Paclitaxel; 10-Deacetylpaclitaxel; 10-deacetyl-paclitaxel; 10-Desacetyltaxol; B77R96LJLK; 10-Deacetyltaxol
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 27~125 mg/mL (33.3~154 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 6.25 mg/mL (7.70 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 62.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 6.25 mg/mL (7.70 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 62.5 mg/mL clear DMSO stock solution to 900 μL corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.2317 mL 6.1586 mL 12.3172 mL
5 mM 0.2463 mL 1.2317 mL 2.4634 mL
10 mM 0.1232 mL 0.6159 mL 1.2317 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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