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1.05910

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Maltose monohydrate

suitable for microbiology

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Synonym(s):
Maltose monohydrate, 4-O-a-D-Glucopyranosyl-D-glucose
Empirical Formula (Hill Notation):
C12H22O11 · xH2O
CAS Number:
Molecular Weight:
342.30 (anhydrous basis)
MDL number:
EC Index Number:
200-716-5

pH

4.5-6.0 (20 °C, 50 g/L in H2O)

Quality Level

mp

125 °C (anhydrous)

solubility

470.2 g/L

bulk density

320 kg/m3

application(s)

microbiology

storage temp.

15-25°C

InChI

1S/C12H22O11.H2O/c13-1-4(16)7(18)11(5(17)2-14)23-12-10(21)9(20)8(19)6(3-15)22-12;/h1,4-12,14-21H,2-3H2;1H2/t4-,5+,6+,7+,8+,9-,10+,11+,12+;/m0./s1

InChI key

HBDJFVFTHLOSDW-DNDLZOGFSA-N

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1.05912137502547288
Maltose monohydrate suitable for microbiology

1.05910

Maltose monohydrate

Maltose monohydrate for biochemistry

1.05912

Maltose monohydrate

Maltose monohydrate United States Pharmacopeia (USP) Reference Standard

1375025

Maltose monohydrate

D-(+)-Maltose monohydrate analytical standard

47288

D-(+)-Maltose monohydrate

solubility

470.2 g/L

solubility

470.2 g/L

solubility

-

solubility

-

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

-

storage temp.

2-30°C

mp

125 °C (anhydrous)

mp

125 °C (anhydrous)

mp

-

mp

-

pH

4.5-6.0 (20 °C, 50 g/L in H2O)

pH

4.5-6.0 (20 °C, 50 g/L in H2O)

pH

-

pH

-

bulk density

320 kg/m3

bulk density

320 kg/m3

bulk density

-

bulk density

-

General description

Maltose monohydrate is a sugar with one molecule of water of hydration. It is a white crystalline powder, slightly sweet to taste. Maltose monohydrate is used for the identification of microbes that can ferment it, producing acid and in some cases gas. The identification is carried out using a phenol-red broth base, which contains all the required nutrients for growth of the microorganism except the carbohydrate source which is supplemented by the sugar. If fermentation takes place the indicator (phenol red) turns yellow in color due to the acid produced and if any gas is produced it is collected in the inverted Durham tubes.

Application

Maltose monohydrate is used in microbiology to study the specific nutritional properties of various microorganisms.

Analysis Note

Identity (IR): conforms
Spec. rotation [α²0/D (10 %; water; calc. on anhydrous substance): +135.0 - +139.0 °
Heavy metals (as Pb): ≤ 0.001 %
Water: 4.0 - 7.0 %
Suitability for microbiology: conforms

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1


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