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05040

Millipore

Agar

powder, suitable for microbiology

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Synonym(s):
Agar-agar, Gum agar
Linear Formula:
(C12H18O9)n
CAS Number:
EC Number:
MDL number:
eCl@ss:
42040102
NACRES:
NA.74

sterility

non-sterile

Quality Level

form

powder

shelf life

limited shelf life, expiry date on the label

storage condition

(Tightly closed)

ign. residue

≤6%

loss

≤20% loss on drying

pH

5-8 (50 °C, 1.5% in H2O, 100 °C/15 min.)

transition temp

gel point ~35 °C (1.5% solution)

gel strength

>300 g/cm2 (1.5% gel)

solubility

H2O: 1.5% at 70 °C, clear to slightly hazy (100 °C/15 min.)

application(s)

agriculture
microbiology

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

InChI key

GYYDPBCUIJTIBM-DYOGSRDZSA-N

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1 of 4

This Item
A129605039A4550
Agar powder, suitable for microbiology

Millipore

05040

Agar

Agar microbiology tested, suitable for plant cell culture, suitable for cell culture, powder

Sigma-Aldrich

A1296

Agar

Agar suitable for microbiology

Millipore

05039

Agar

Agar Type A, suitable for plant cell culture

Sigma-Aldrich

A4550

Agar

form

powder

form

powder

form

powder

form

powder

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

limited shelf life, expiry date on the label

shelf life

-

pH

5-8 (50 °C, 1.5% in H2O, 100 °C/15 min.)

pH

-

pH

6-7.5 (1.5%after autoclaving)

pH

-

solubility

H2O: 1.5% at 70 °C, clear to slightly hazy (100 °C/15 min.)

solubility

-

solubility

H2O: 1.5% at 70 °C, clear to very faintly turbid, almost colorless

solubility

-

application(s)

agriculture, microbiology

application(s)

agriculture
microbiology

application(s)

agriculture, microbiology

application(s)

agriculture

General description

Agar is 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 to promote the formation of distinct colonies and enable selective isolation of specific microorganism. It is also used to prepare 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 to cool and solidify, forming the surface for microbial growth.

Application

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, and food and beverage samples.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Product Number
-
25G
Pack Size/Quantity

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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

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Articles

Base Ingredients of Microbiology Media

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.

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