Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

Safety Information

N7404

Millipore

Niacin assay medium

suitable for microbiology, NutriSelect® Plus

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

UNSPSC Code:
41171608
NACRES:
NA.85

form

powder

Quality Level

200

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

final pH

6.8±0.2 (25 °C)

application(s)

food and beverages
pharmaceutical
microbiology

storage temp.

2-8°C

suitability

nonselective for Lactobacillus spp.

Related Categories

Application

Recommended for the microbiological assay of Niacin or Niacinamide.

Components

Ingredients (g/L)
Casein acid hydrolysate vitamin free, 12.00
Dextrose, 40.00
Sodium acetate, 20.00
L-Cysteine, 0.40
DL-Tryptophan, 0.20
Adenine sulphate, 0.02
Guanine hydrochloride, 0.02
Uracil, 0.02
Thiamine hydrochloride, 0.0002
Calcium pantothenate, 0.0002
Pyridoxine hydrochloride, 0.0004
Riboflavin, 0.0004
p-Aminobenzoic acid, 0.0002
Biotin, 0.00008
Dipotassium phosphate, 1.00
Monopotassium phosphate, 1.00
Magnesium sulfate, 0.40
Sodium chloride, 0.02
Ferrous sulfate, 0.02
Manganese sulfate, 0.02

Preparation Note

Suspend 7.51 g of Niacin Assay Medium in 100 ml of distilled water. Boil to dissolve the medium completely. Mix well to distribute the slight precipitate evenly. For the assay, dispense 5 ml of medium per assay tube (containing increasing amounts of standard or unknown) and make up the total volume to 10 ml per tube with distilled water. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 10 minutes. Cool immediately.

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

N7404-BULK:
N7404-VAR:
N7404-100G:

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCBV8756

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service