1.05910

Maltose monohydrate

suitable for microbiology

• Sinonimo/i: Maltose monohydrate, 4-O-a-D-Glucopyranosyl-D-glucose
• Formula empirica (notazione di Hill): C₁₂H₂₂O₁₁ · xH₂O
• Numero CAS: 6363-53-7
• Peso molecolare: 342.30 (anhydrous basis)
• Numero MDL: MFCD00149343
• Codice UNSPSC: 41106212
• Numero indice EU: 200-716-5
• NACRES: NA.74

Proprietà

• pH: 4.5-6.0 (20 °C, 50 g/L in H₂O)
• Livello qualitativo: 200
• Punto di fusione: 125 °C (anhydrous)
• Solubilità: 470.2 g/L
• Densità bulk: 320 kg/m³
• applicazioni: microbiology
• Temperatura di conservazione: 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; HBDJFVFTHLOSDW-DNDLZOGFSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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

Risultati analitici

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 13 - Non Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1