1.05910

Maltose monohydrate

suitable for microbiology

• 别名: Maltose monohydrate, 4-O-a-D-Glucopyranosyl-D-glucose
• 经验公式（希尔记法）: C₁₂H₂₂O₁₁ · xH₂O
• CAS号: 6363-53-7
• 分子量: 342.30 (anhydrous basis)
• MDL號碼: MFCD00149343
• 分類程式碼代碼: 41106212
• 酶委員會索引編號: 200-716-5
• NACRES: NA.74

属性

• pH值: 4.5-6.0 (20 °C, 50 g/L in H₂O)
• 品質等級: 200
• mp: 125 °C (anhydrous)
• 溶解度: 470.2 g/L
• 體積密度: 320 kg/m³
• 應用: microbiology
• 儲存溫度: 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 密鑰: HBDJFVFTHLOSDW-DNDLZOGFSA-N

说明

一般說明

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.

應用

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

分析報告

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

安全信息

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 1