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Agar, USP

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Specifications

Pharmaceutical Grade (USP) agar is a highly purified extract of select Gelidium marine algae, forming part of the cell wall, that gives excellent growth characteristics used in a wide variety of microbiological applications.
Catalog #A0930-05
Agar is a phycocolloid, a complex mixture of several sugar compounds that retains a gelatinous structure at room temperature after boiling. Bacteriological agar is purified by successive washings to remove or extensively reduce chemical contaminants, color and salts.
After autoclaving, agar is a light amber and free of particulates, solidifying into a clear, firm gel and suitable for all molecular biology applications. Bacterial and phage growth (M13 and Lambda) is superior to standard microbiology grade agars.
CAS Number9002-18-0
Appearance
White to light tan, homogenous, free flowing powder.
Melting Point (1.5%)
82-88°C
pH (1.5%)
6.0-8.0
Water
10%
Ash
6.5%
Gel Point (1.5%)
34-38°C
Gel Strength (1.5%)600-1100g/cm2
Identification A
Passes
Identification B
Passes
Foreign Insoluble Matter
10%
Foreign Organic Matter
1%
Foreign Starch
None detected
Gelatin
None detected
Water Absorption
75ml
Acid-insoluble Ash
0.5%
Arsenic
0.0003%
Lead
0.001%
Heavy Metals (Pb)
0.004%
Microbiological Analysis
Total Plate Count500cfu/g
Coliforms3cfu/g
E. coli0cfu/g
Salmonella0cfu/g
Yeast and Mold200cfu/g
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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