t-Boc-aminooxy-PEG4-propargyl is a click chemistry tool containing a propargyl group and t-Boc-aminooxy group. Propargyl group is reactive with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to yield a stable triazole linkage. T-Boc-aminooxy can be deprotected under mild acidic conditions and then can react with an aldehyde or ketone group to form a linkage. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Detail
t-Boc-aminooxy-PEG4-propargyl is a click chemistry tool containing a propargyl group and t-Boc-aminooxy group. Propargyl group is reactive with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to yield a stable triazole linkage. T-Boc-aminooxy can be deprotected under mild acidic conditions and then can react with an aldehyde or ketone group to form a linkage. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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022220P1 Brilliant Green Lactose Bile Broth
Product Info
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Product Info
Introduction
Usages： For determination of coliform confirmatory test for multi-tube fermentation.
Principle: Peptone provide carbon and nitrogen sources; lactose as fermentable sugars; ox bile powder and brilliant green inhibit the non-Enterobacteriaceae.
Formulation (per liter): Peptone: 10g Lactose: 10g Ox bile powder: 20g Brilliant green: 0.0133g Final pH7.2 ± 0.2
How to use: 1.Suspend 40g of the product, add 1 L of distilled water, stirring heated to boiling until completely dissolved, packed in a test tube with a small inverted tube, autoclave at 121 ℃ for 15min, cool to room temperature and set aside. 2.Sample handling and dilution. Slightly. 3.Transplanted LST broth tube to brilliant green lactose bile broth tube by using a inoculating loop. 4.the tube was placed in an incubator culture at 36 ± 1 ℃ for 24h. 5.Observe the results. Press production trachea number, check table report MPN MPN value per gram (mL) sample of coliform bacteria.
Quality control: Quality control strains were inoculated and culuture at 36 ± 1 ℃ for 24h ,results are as follows: Bacterial Name Bacterial No. Growth Status Gassing Escherichia coli ATCC25922 good +
Salmonella typhimurium CMCC (B) 50115 good —
Staphylococcus aureus ATCC6538 inhibited —
Storage: Store in a dark, cool and dry place, tighten the cap immediately after use. Storage period of three years.
Propargyl-PEG5-t-butyl ester has one of the functional groups protected by t-butyl group. The protection can be removed under acidic conditions. The propargyl group forms triazole linkages with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The PEG units help improving the water-solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Document
Propargyl-PEG5-t-butyl ester has one of the functional groups protected by t-butyl group. The protection can be removed under acidic conditions. The propargyl group forms triazole linkages with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The PEG units help improving the water-solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Ensure the stability and viability of viruses, chlamydia, and mycoplasma.
Manufactured based on CDC formula.
Antimicrobic blend suppresses bacterial and fungal contamination.
Supplied in bulk (1 Litre) to provide options for custom applications.
Preserve swab samples for up to 48h when preserved at 2–8°C.
Norgen’s Viral Transport Medium is formulated to transport samples that are presumably infected with a virus. Viral Transport Medium is manufactured based on CDC formula and is offered in bulk to provide an option to readily assemble swab collection devices for sample collection.
Norgen’s Viral Transport Medium (VTM) is designed for safe and efficient transport of viral samples, including but not limited to those from nasal, throat, and other swabs. The VTM contains a balanced mix of Hank’s Balanced Salt Solution (HBSS), heat-inactivated fetal bovine serum (FBS), gentamicin sulfate, and amphotericin B to preserve the viability of viruses and prevent the growth of contaminating bacteria and fungi. The medium ensures the stability and viability of viruses, chlamydia, and mycoplasma for analysis using different techniques. In addition, the Viral Transport Medium eliminates the need to immediately process or freeze samples.
Details
Storage Conditions and Product Stability The Viral Transport Medium can be stored at 2-8°C for up to 1 year from the date of manufacturing without any reduction in performance.
