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1.01614

Millipore

Agar

granulated, purified and free from inhibitors, suitable for microbiology

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Synonym(s):
Agar-agar, Gum agar
Linear Formula:
(C12H18O9)n
CAS Number:
MDL number:
EC Index Number:
232-658-1

biological source

algae

Quality Level

form

solid

potency

11000 mg/kg LD50, oral (Rat)

shelf life

limited shelf life, expiry date on the label

packaging

pkg of 1 kg

pH

6.8 (20 °C, 100 g/L in H2O)

mp

90 °C

solubility

slightly soluble 20 g/L

bulk density

550 kg/m3

application(s)

microbiology

storage temp.

15-25°C

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
050400503856763
Agar granulated, purified and free from inhibitors, suitable for microbiology

1.01614

Agar

Agar powder, suitable for microbiology

05040

Agar

Agar suitable for microbiology

05038

Agar

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

56763

Agar

application(s)

microbiology

application(s)

agriculture, microbiology

application(s)

agriculture, microbiology

application(s)

microbiology

pH

6.8 (20 °C, 100 g/L in H2O)

pH

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

pH

5.5-7.5 (25 °C)

pH

-

storage temp.

15-25°C

storage temp.

-

storage temp.

-

storage temp.

-

solubility

slightly soluble 20 g/L

solubility

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

solubility

H2O: 1.5%, clear to almost clear (100 °C/15 min.)

solubility

-

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

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, 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.

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, food and beverage samples.

Features and Benefits

Our Granulated media are:
  • Safer - Significant reduction of inhalation of toxic and allergenic substances resulting in fewer allergic responses. Less contamination of working tools and environment
  • Accurate - No separation of components and no clumping, even under humid or warm conditions, ensure a uniform product with higher performance accuracy
  • Fast - Rapid and uniform dissolution in water
  • Easier - Easier handling and weighing due to the better flow properties
  • Reliable - Homogenous distribution of ingredients guarantees high reproducibility even if only small amounts are used.

Linkage

Replaces: 1.01614.5007

Analysis Note

Appearance (colour): brownish-yellow
Appearance (description): granules
Identity (NIR): passes test
Identity (Iodine - test): passes test
Identity (Solidification point): passes test
Identity (Turbidity - test): passes test
Solidification point: 32 - 36 °C
Ca (Calcium): ≤ 0.5 %
Mg (Magnesium): ≤ 0.1 %
Sulfated ash (600 °C): ≤ 6 %
Loss on drying (105 °C; 4 h): ≤ 12 %
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): passes test
Growth (Streptococcus pyogenes ATCC 21059): passes test
Growth (Staphylococcus aureus ATCC 25923 (WDCM 00034)): passes test
Growth (Shigella sonnei ATCC 29930 (WDCM 00127)): passes test
Growth (Streptococcus agalactiae ATCC 13813): passes test
Growth (Streptococcus equinus DSM 20062): passes test
Growth (Streptococcus pneumoniae ATCC 6301): passes test
Growth (Candida albicans ATCC 10231 (WDCM 00054)): passes test
Suitability for microbiology: passes test

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1


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25G
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705578-5MG-PW

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MMYOMAG-74K-13

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