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X-Factor Disks (C15-1308-834)

Catalog No.
C15-1308-834
Manufacturer No.
77148-1PAK-F
Manufacturer Name
Sigma-Aldrich
Quantity
50
Unit of Measure
DS
Price: $133.78
List Price: $148.65

X-Factor Discs are used for the presumptive identification of Haemophilus species based on their requirements for X or V growth factors or both. Members of the genus Haemophilus require accessory growth factors for in vitro growth.

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General description

X-Factor Discs are used for the presumptive identification of Haemophilus species based on their requirements for X or V growth factors or both. Members of the genus Haemophilus require accessory growth factors for in vitro growth. Some Haemophilus spp. require X factor (hemin) alone, V factor (nicotinamide adenine dinucleotide [NAD]) alone, or a combination of both. Consequently, this significant difference in growth factor requirements of Haemophilus spp. allows for their differentiation. X factor comprises protoporphyrin IX, also called hemin or other iron-containing porphyrins. These are required for growth because X-dependent strains cannot convert d-aminolaevulinic acid to protoporphyrin. The organisms will grow only around the disk that provides the appropriate factor for their growth. Hence, differentiation is based on the presence or absence of growth around the discs impregnated with X-factor.

Application

X-Factor Discs are used for the presumptive identification of Haemophilus species and find their application in various sectors such as the food and dairy industry, water industry, pharmaceutical laboratory testing, cosmetic industry, environmental and sanitary testing, clinical diagnostic, etc.

Packaging

one package contains 50 test discs (sterile filter paper impregnated with haemin)

Quality Level: 100. sterility: sterile. product line: BioChemika. form: disc. shelf life: limited shelf life, expiry date on the label. packaging: pkg of 50 . discs. technique(s): microbe id | growth & motility: suitable. application(s): clinical testing
food and beverages, microbiology. storage temp.: 2-8°C. suitability: Haemophilus spp. (species). Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable. Personal Protective Equipment: Eyeshields, Gloves, type N95 (US).
UPC:
42201847
Condition:
New
Weight:
1.00 Ounces
HazmatClass:
No
WeightUOM:
LB
MPN:
77148-1PAK-F


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