1.05910

Maltose monohydrate

suitable for microbiology

• Sinônimo(s): Maltose monohydrate, 4-O-a-D-Glucopyranosyl-D-glucose
• Fórmula empírica (Notação de Hill): C₁₂H₂₂O₁₁ · xH₂O
• Número CAS: 6363-53-7
• Peso molecular: 342.30 (anhydrous basis)
• Número MDL: MFCD00149343
• Código UNSPSC: 41106212
• Número do índice EC: 200-716-5
• NACRES: NA.74

Propriedades

• pH: 4.5-6.0 (20 °C, 50 g/L in H₂O)
• Nível de qualidade: 200
• pf: 125 °C (anhydrous)
• solubilidade: 470.2 g/L
• densidade volumétrica: 320 kg/m³
• aplicação(ões): microbiology
• temperatura de armazenamento: 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
• chave InChI: HBDJFVFTHLOSDW-DNDLZOGFSA-N

Descrição

Descrição geral

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.

Aplicação

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

Nota de análise

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

Informações de segurança

• Código de classe de armazenamento: 13 - Non Combustible Solids
• Classe de risco de água (WGK): WGK 1