Merck
All Photos(1)

17209

Millipore

R-2A Agar

suitable for microbiology, NutriSelect® Plus

Synonym(s):
Ph. Eur. Medium S
NACRES:
NA.74

Quality Level

sterility

non-sterile

form

powder

shelf life

limited shelf life, expiry date on the label

composition

agar, 15 g/L
casein acid hydrolysate, 0.5 g/L
dextrose, 0.5 g/L
dipotassium phosphate, 0.3 g/L
magnesium sulfate, 0.024 g/L
proteose peptone, 0.5 g/L
sodium pyruvate, 0.3 g/L
starch, soluble, 0.5 g/L
yeast extract, 0.5 g/L

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

final pH

7.2±0.2 (25 °C)

application(s)

bioburden testing
environmental
food and beverages
water monitoring

microbiology

suitability

nonselective for Bacillus spp.
nonselective for Candida spp.
nonselective for Enterococcus spp.
nonselective for Escherichia coli
nonselective for Pseudomonas spp.
nonselective for Salmonella spp.
nonselective for Staphylococcus spp.
nonselective for bacteria (General Media)
nonselective for coliforms

Application

For heterotrophic plate count of water samples using longer incubation periods.

Preparation Note

Suspend 18.12 g in 1 litre distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 121°C for 15 minutes.

Footnote

We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

Legal Information

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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Quotes and Ordering

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