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Natamycin

Natamycin

Chemical Name:Pimaricin
CAS No.: 7681-93-8
Molecular formula: C33H47NO13
Molecular weight: 665.73
EINECS number: 231-683-5
...

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7681-93-8

Chemical properties:

Near white to creamy yellow powder, almost odorless and tasteless. It may contain 3 mol of water. The temperature of 280 ° C (decomposition). It is insoluble in water, slightly soluble in methanol, soluble in glacial acetic acid and dimethyl sulfoxide.


Uses:

Anti-fungal agent. It has a good anti-mildew effect when used on the surface of foods that are easily proliferated by mold and exposed to air. It is used in fermented cheese to selectively inhibit the growth of mold and allow bacteria to grow and metabolize normally.

This product should be stored in a sealed, no direct sunlight, <15 ° C.

Melting point

2000C (dec)

Boiling point

952℃

Specific rotation

D20 +278° (c = 1 in CH3COOH)

Density

1.0 g/mL at 20 °C(lit.)

Refractive index

1.5960 (estimate)

Flash point

>110°(230°F)

Storage conditions

2-8°C

Solubility

Soluble in DMSO

form

aqueous suspension

Acidity coefficient (pKa)

pKa 4.6(50% aq. MeOEtOH) (Uncertain);8.35 (Uncertain)

Sensitivity

Light Sensitive

Merck

13,6453

stability

Light sensitive


Security Information:

Dangerous goods sign

Xn

Hazard category code

22

safety instructions

24/25-36

WGK Germany

2

RTECS number

TK3325000

F

8-10

toxicity

LD50 orally in male, female rats (g/kg): 2.73, 4.67 (Levinskas)


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