56763

Agar

high purity, low ionic content, low gel strenght, suitable for microbiology

• Synonim(y): Agar-agar, Gum agar, Agar-agar, Gum agar
• Wzór liniowy: (C₁₂H₁₈O₉)_n
• Numer CAS: 9002-18-0
• Numer WE: 232-658-1
• Numer MDL: MFCD00081288
• Kod UNSPSC: 41106212
• NACRES: NA.85

Właściwości

• Poziom jakości: 200
• sterylność: non-sterile
• Formularz: powder
• okres trwałości: limited shelf life, expiry date on the label
• pozostałość po prażeniu: ≤4.0%
• strata: ≤10% loss on drying
• mętność: ≤8 NTU (after autoclaving)
• mp: 85-95 °C
• temp. przejścia: gel point 34-36 °C
• siła żelu: ≥800 g/cm²
• ślady anionów: sulfate (SO₄^2-): ≤2.75%
• ślady kationów: Ca: ≤500 mg/kg; Mg: ≤200 mg/kg
• Zastosowanie: microbiology
• ciąg SMILES: O1[C@@H]([C@@H]([C@@H]([C@H](C1OC2[C@H]3OCC2OC([C@H]3O)C)O)OC)O)CO
• InChI: 1S/C14H24O9/c1-5-8(16)13-11(7(21-5)4-20-13)23-14-10(18)12(19-2)9(17)6(3-15)22-14/h5-18H,3-4H2,1-2H3/t5?,6-,7?,8-,9+,10-,11?,12+,13+,14?/m1/s1
• Klucz InChI: GYYDPBCUIJTIBM-DYOGSRDZSA-N

Opis

Opis ogólny

Agar is of high purity, low ionic content, and low gel strength widely used in microbiology as a solidifying agent in microbial culture media. It is a polysaccharide derived from seaweed and is primarily composed of agarose. Agar is a mostly inert substance, which makes it an ideal material for microbial culture media because it doesn’t interfere with the growth of microorganisms. Agar can solidify media, allowing microorganisms to grow in a solid environment, which facilitates the formation of distinct colonies and selective isolation of specific microorganisms. Agar is also used in the preparation of selective and differential media, which can provide additional nutrients or other chemical substances to promote or inhibit the growth of specific microorganisms selectively. Agar is sterilized by autoclaving and then poured into Petri dishes, where it can cool and solidify, forming the surface for microbial growth.

Zastosowanie

Agar is commonly used as a solidifying agent in many microbial culture media for the growth and identification of bacteria, yeasts and molds from various pharmaceutical, environmental, food and beverage samples.

Komentarz do analizy

toxic substances: absence

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Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable