甲基-D-吡喃半乳糖苷
中文名称：甲基-D-吡喃半乳糖苷 中文别名：甲基-Β-D-吡喃半乳糖苷; 甲基-Β-D-吡喃半乳糖苷; 甲基-ΒETA-D-吡喃半乳糖苷; 甲基β-D-吡喃半乳糖苷; 甲基-3-谷氨基丙烷;
甲基 BETA-D-吡喃半乳糖苷;
收起 英文名称：methyl β-D-galactoside 英文别名：methyl beta-D-galactoside; A-METHYL-B-D-GALACTOSIDE; Methyl-beta-D-galactopyranoside; Methyl galactoside; Methyl-β-D-galactopyranoside;
1-O-METHYL-GALACTOSIDE; Methyl .β.-D-galactopyranoside, methyl, .β.-D-; Methyl β-D-Galactopyranoside;
收起 CAS号：1824-94-8 分子式：C7H14O6 分子量：194.18200 精确质量：194.07900 PSA：99.38000
物化性质
外观与性状：白色结晶粉末 密度：1.47 g/cm3 熔点：172-180ºC 沸点：389.1ºC at 760 mmHg 闪点：189.1ºC 蒸汽压：1.15E-07mmHg at 25°C
安全信息
海关编码：2932999099 安全说明：S22
海关数据查看详细
中国海关编码： 2932999099 概述：
2932999099. 其他仅含氧杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素：
品名, 成分含量, 用途
Summary：
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%
Name: Methyl β-D-galactopyranoside CAS: 1824-94-8
M.F.: C7H14O6 M.W.: 194.18
Batch No: 20151202 Quantity: 2000g
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Items
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Standards
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Results
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Appearance
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White crystals or powder
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Positive
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Solubility
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Easily soluble in water, insoluble in ether
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Complies
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Appearance of solution
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Dissolve 0.5 gin 10 ml of water,
and the solution should be clear
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Complies
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Identification
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IR and TLC
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Complies
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MS and NMR
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Should Comply
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Complies
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Residue on ignition
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Max. 0.5%
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0.1%
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Alpha-Isomer
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Max. 1%
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0.2%
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TLC
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Should be one spot
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one spot
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Assay
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Min. 98%
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98.2%
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