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1,2-Butanediol purum, ≥98.0% (GC) (Sigma)

Brand:

Sigma

Description

Grade: Purum

Assay: ≥98.0% (GC)

Synonym: 1,2-Butylene glycol

1,2-Butanediol has been used:

  • to investigate dilatometric measurements of excess molar volumes and excess partial molar volumes for binary mixtures of N,N-dimethylformamide with 1,2-alkanediols[1]
  • in the preparation of 1,2-diolates of titanium by reaction with titanium (IV) isopropoxide or titanium (IV) chloride[2]

Fetal Bovine Serum non-USA Origin, Sterile-filtered, Suitable for Cell Culture

Brand:

Sigma

Description

Synonyms: Fetal Calf sera, Fetal Calf serum, FBS, FCS, sera, serum

Fetal calf serum is a common supplement used in cell culture media to promote cell growth and proliferation. It is a non-USA origin fetal calf serum that has been sterile-filtered, making it free from contaminants and suitable for use in cell culture applications. This product is an excellent choice for those looking for a reliable and high-quality fetal calf serum that can support a wide range of cell types in culture.

N-Methyl-N-(trimethylsilyl)trifluoroacetamide for GC derivatization, LiChropur™, ≥98.5% (Sigma)

Brand:

Sigma

Description

Grade: For GC derivatization
Assay: ≥98.5% (GC)
Quality: LiChropur™
Technique(s): Gas chromatography (GC): suitable
Synonyms: N-Trimethylsilyl-N-methyl trifluoroacetamide, MSTFA
N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) is a silylating reagent.

MSTFA may be used in silylation procedure to detemine steroid hormones 17α-ethinylestradiol (EE2) and estrone using GC-MS. MSTFA along with Trimethylsilyl chloride (TMCS) in eithyl acetate, acetonitrile and dichloromethane solvents leads to formation of trimethylsilyl (TMS) and tert-butyldimethylsilyl (TBS) derivatives.[1]
Suitable for the derivatization of amines, amino acids, carboxyl, hydroxyamines, indolalkylamine, n-nitrosoamino acids, nucleosides, phenolalkylamines, serotonin and tryptamine.

Polyethylene-graft-maleic Anhydride (Sigma-Aldrich)

Brand:

Sigma-Aldrich

This item has been discontinued. Please contact us for more information.

Application

Bond aid for polar to nonpolar substances. Compatibilizer for polymer blends.

Features and Benefits

Contributes abrasion resistance, lubricity, anti-blocking, and surface glass, allows chemical bonding via anhydride group.

RNAlater® (Sigma)

Brand:

Sigma

Description

Synonyms: RNA preservation solution, RNA protection solution, RNA protector, RNA stabilizer, RNA storage solution, RNA transportation solution

RNAlater® is an RNA stabilization solution that is designed to quickly permeate and stabilize RNA in tissues and cells after collection. It allows for long-term storage of samples at different temperatures, including room temperature, without compromising RNA integrity. It preserves RNA in tissues for up to 1 day at 37 °C, 1 week at 25 °C, and 1 month at 4 °C. Tissues can also be stored at -20 °C long-term.

Trypsin from Porcine Pancreas (Sigma)

Brand:

Sigma

Description

Product line: BioReagent

Biological source: Porcine pancreas

Specific activity: 1,000-2,000 BAEE units/mg solid

Trypsin is applicable for tissue disaggregation, due to its effective action and tolerance towards different cell types and serum-induced neutralization.[1]

For trypsin digestion of peptides, use a ratio of about 1:100 to 1:20 for trypsin:peptide. The typical use for this product is in removing adherent cells from a culture surface. The concentration of trypsin necessary to dislodge cells from their substrate is dependent primarily on the cell type and the age of the culture. Trypsins have also been used for the re-suspension of cells during cell culture, in proteomics research for digestion of proteins and in various in-gel digestionsns†. Additional applications include assessing crystallization by membrane-based techniques and in a study to determine that protein folding rates and yields can be limited by the presence of kinetic traps.
Trypsin from porcine pancreas has been used to digest chicken bones.[2] It has also been used in the isolation of luteal endothelial cells.[3][4][5]