
Biotina 99% (HPLC) Lyophilized Powder - 1 Gr - Sigma
Código: 23317
Biotina 99% (HPLC) Lyophilized Powder
Sinônimo(s):
D-Biotina, Bios II, Coenzima R, Vitamina B7, Vitamina H
About This Item
Fórmula empírica (Notação de Hill):
C10H16N2O3S
Número CAS:
Peso molecular:
244.31
Beilstein:
86838
Número CE:
Número MDL:
Código UNSPSC:
12352201
eCl@ss:
34058011
ID de substância PubChem:
NACRES:
NA.21
fonte biológica
synthetic (organic)
Nível de qualidade
Ensaio
≥99% (HPLC)
Formulário
lyophilized powder
técnica(s)
HPLC: suitable
cor
white to off-white
pf
231-233 °C (lit.)
solubilidade
ammonium hydroxide: 50 mg/mL (2 M)
temperatura de armazenamento
2-8°C
cadeia de caracteres SMILES
[H][C@]12CS[C@@H](CCCCC(O)=O)[C@@]1([H])NC(=O)N2
Descrição geral
Biotin is a water-soluble vitamin. Mammals depend on biotin via plant and microbial dietary sources.[1] Biotin consists of two rings that are attached to valeric acid moiety as a side chain. One of the rings is attached to ureido group and the other ring is the tetrahydrothiophene group.[2]
Aplicação
Biotin may be used to elute proteins from avidin/streptavidin resins. Biotin has been used:
- for culturing of oligodendrocytes.[3][4]
- as a vitamin supplement for the growth of Bacillus species.[5]
- for blocking endogenous biotin during immunohistology procedures.[6][7]
Ações bioquímicas/fisiológicas
Biotin is a small molecule and its presence with biologically active macromolecules does not affect the biological function of the macromolecule. The biotin-(strept)avidin system are is required for various applications. Biotin also works as a cofactor/coenzyme of carboxylating enzymes, such as pyruvate carboxylase, acetyl-CoA carboxylases 1 and 2, 3-methylcrotonyl-CoA carboxylase (MCC), and propionyl-CoA carboxylase (PCC).[1] It catalyzes the formation of oxaloacetate from pyruvate and CO2. Biotin conjugation with avidin or streptavidin helps in linking the target molecule (antibody, nucleotide, protein A, etc.) with the labeling system (enzyme, fluorescent, chemiluminescent probes). This complex is used for many detection systems, such as immunoassays, DNA hybridization assays, immunohistochemistry, and flow cytometry. This approach is also applied for to the purification and characterization of various molecules of interest. Biotin is involved in the epigenetic regulation of genes, cell signaling, and the structure of chromatin.[1]