PeptideDB

BTBCT 525560-81-0

BTBCT 525560-81-0

CAS No.: 525560-81-0

BTBCT is mainly used as a label in time-resolved fluorescence immunoassay (TRFIA). The detection limit of TSH TR-IFMA is
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This product is for research use only, not for human use. We do not sell to patients.

BTBCT is mainly used as a label in time-resolved fluorescence immunoassay (TRFIA). The detection limit of TSH TR-IFMA is 0.011 mIU/L, and the sample volume is 10 μl. It has high fluorescence intensity and stability, which improves the detection sensitivity.

Physicochemical Properties


Molecular Formula C26H15CLF6O6S
Molecular Weight 604.90
Exact Mass 604.018
CAS # 525560-81-0
PubChem CID 16211207
Appearance Typically exists as solid at room temperature
LogP 7.437
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 12
Rotatable Bond Count 9
Heavy Atom Count 40
Complexity 1070
Defined Atom Stereocenter Count 0
InChi Key CJRMAUPUOUJYMF-UHFFFAOYSA-N
InChi Code

InChI=1S/C26H15ClF6O6S/c27-40(38,39)18-9-10-19(14-1-5-16(6-2-14)21(34)12-23(36)25(28,29)30)20(11-18)15-3-7-17(8-4-15)22(35)13-24(37)26(31,32)33/h1-11H,12-13H2
Chemical Name

3,4-bis[4-(4,4,4-trifluoro-3-oxobutanoyl)phenyl]benzenesulfonyl chloride
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)

Biological Activity


ln Vitro BTBCT-based protein labeling: 1: Dissolve BTBCT powder at 10 mg/ml in dry ethanol 2: Dissolve 1 mg of protein in 10 ml of 0.1 mol/L sodium carbonate buffer 3: Gradually add 150 µl of BTBCT solution to the protein solution under stirring. The addition should be done slowly to avoid protein precipitation 4: Incubate the mixture at room temperature for 2 hours 5: Filter the mixture through a 0.2 µm Whatman filter 6: If necessary, further purify the labeled protein by affinity chromatography 7: Dialyze the purified labeled protein against TSA buffer containing 0.05% NaN3 and store at 4 °C or cryopreserved as needed Indirect serum TSH TR-IFMA protocol 1: Microplate coating: Add 30 µL of coating buffer containing 15 µg/mL anti-TSH McAb-05 to each microwell. Incubate at room temperature for 24 hours. Wash twice with wash buffer. 2: Blocking: Add 40 µL of blocking buffer (usually containing BSA or other proteins) and incubate at room temperature for 6 hours. Wash and air dry. 3: Sample and standard addition: Add 10 µL of TSH standard or serum sample to be tested to the microwells. Add 10 µL of a mixture of biotinylated anti-TSH McAb-04 and McAb-03 at a concentration of approximately 30 ng/µL. Incubate at room temperature for 1 hour with gentle shaking. 4: Washing: Wash the microplate thoroughly with washing buffer. 5: Add signal generating reagent: Add 20 µL of TSH detection buffer containing streptavidin-BSA-BTBCT-Eu complex to each well. Incubate again with gentle shaking for 20 minutes. 6: Final wash: Wash four times and wash twice with distilled water. 7: Fluorescence measurement: Measure the fluorescence intensity of each well using a time-resolved fluorimeter. Direct Serum T4 TRFIA Protocol Steps1: Microplate Preparation: Coat the microplate with anti-T4 antibody, typically at a coating concentration of 10 µg/mL. Incubate with coated antibody overnight at 4°C. 2: Block Nonspecific Sites: Block the microplate with blocking buffer (typically containing 1% BSA) for 1-2 hours at room temperature. 3: Sample and Label Addition: Add a predetermined amount of labeled T4-BSA-BTBCT-Eu complex and the serum sample or T4 standard to be tested to each microplate. 4: Competition Reaction: Incubate the plate at room temperature for 1-2 hours. 5: Wash: Wash the microplate thoroughly with wash buffer. 6: Fluorescence Measurement: Measure the fluorescence signal of each microplate using a time-resolved fluorimeter.
References

[1]. Wu FB et al. new europium beta-diketone chelate for ultrasensitive time-resolved fluorescence immunoassays. Anal Biochem. 2002 Dec 1;311(1):57-67


Solubility Data


Solubility (In Vitro) May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo) Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300:Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)

Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders

Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.6532 mL 8.2658 mL 16.5317 mL
5 mM 0.3306 mL 1.6532 mL 3.3063 mL
10 mM 0.1653 mL 0.8266 mL 1.6532 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.