百科

木糖

CAS号：58-86-6

英文名：aldehydo-D-xylose

分子式

C5H10O5

熔点

154-158°C(lit.)

密度

1.525

分子量

150.13

沸点

331ºC

溶解度

soluble

信号词

危险品标志

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化合物简介

木糖（化学式：C5H10O5）是一种戊醛糖，为白色细针状结晶或结晶性粉末。可溶于水和温热乙醇，不溶于乙醚，有还原性、右旋光性和变旋现象。略有特殊气味和爽口甜味，甜味相当于蔗糖的0.4倍。D-木糖以多糖的形式天然存在于植物中，可以从黑木耳或农产品废弃物（如棉桃的外皮，玉米的秸秆、穗轴）中提取。

基本信息

中文名称

木糖

英文名称

aldehydo-D-xylose

中文别名

D(+)木糖、D-木糖、D-(+)-木质醛糖、D-戊醛糖、D-(+)-木糖

英文别名

D-Xylose、Xylo-pfan、XYLOSE、D-XYL、D(+)-Xylose、D-Xyluose、XYLOSE,CP、d-xylos、Xylomed、XYLOSE-D

CAS号

58-86-6

分子式

C5H10O5

分子量

150.13

精确质量

150.053

PSA

90.15

LOGP

-2.5823

编号系统

UNII

A1TA934AKO

物化性质

外观与性状

单斜针状或棱柱

密度

1.525

沸点

331ºC

熔点

154-158°C(lit.)

闪点

219.2ºC

折射率

20 ° (C=10, H2O)

水溶解性

soluble

稳定性

Stable. Incompatible with strong oxidizing agents.

储存条件

Store at RT.

蒸汽压

1.22E-08mmHg at 25°C

安全信息

RTECS号

ZF2285000

安全说明

S24/25

WGK Germany

2

危险类别码

R36/37/38

海关编码

2940000000

危险品标志

Xi

生产方法及用途

生产方法

将玉米芯放入稀硫酸中进行水解,用氢氧化钡中和,过滤、浓缩、脱色,通过离子交换柱后再浓缩,然后倒入无水乙醇中结晶,过滤,即得纯品。反应式如下: 通常的制备方法有中和法、离子交换脱酸法、电渗析脱酸法、结晶法、连续水解层析分离法等。其中中和法与离子交换脱酸法是成熟的工艺路线。
1.中和法
2.离子交换脱酸法

用途

1.用作生化试剂,如生物培养基的配制。
2.为无热量甜味剂,适用于肥胖症患者和糖尿病患者,也是制酱色的原料及香料原料。

合成路线

共找到97条合成路线 >

D-threo-Pentosulose

D-threo-Pentosulose

D-木酮糖

D(-)-来苏糖

海关数据

共找到1个国家海关数据 >

国家/地区名称	海关编码	更新时间	操作
中国	2940000000	2019-03	查看

上游原料

共找到156个上游原料 >

orchidastroside B

orchidastroside B

orchidastroside C

orchidastroside C

physenoside S1

(3β)-30,30-dimethoxy-16-oxo-13,28-epoxyoleanan-3-yl β-D-glucopyranosyl-(1->2)-[β-D-xylopyranosyl-(1->2)-β-D-glucopyranosyl-(1->4)]-α-L-arabinopyranoside

(3β)-30,30-dimethoxy-16-oxo-13,28-epoxyoleanan-3-yl β-D-glucopyranosyl-(1->2)-[β-D-xylopyranosyl-(1->2)-β-D-glucopyranosyl-(1->4)]-α-L-arabinopyranoside

D(-)-来苏糖

下游产品

共找到95个下游商品 >

Tri-O-acetyl-.α.-D-xylopyranosyl chloride

Tri-O-acetyl-.α.-D-xylopyranosyl chloride

2,3-丁二酮

2-甲基四氢呋喃-3-酮

2-甲基四氢呋喃-3-酮

1,2-丙二醇

2-methylthiolan-3-one

2-methylthiolan-3-one

D(-)-来苏糖

上游原料

orchidastroside B orchidastroside C physenoside S1 (3β)-30,30-dimethoxy-16-oxo-13,28-epoxyoleanan-3-yl β-D-glucopyranosyl-(1->2)-[β-D-xylopyranosyl-(1->2)-β-D-glucopyranosyl-(1->4)]-α-L-arabinopyranoside D(-)-来苏糖水 3-O-(β-D-xylopyranosyl-(1->3)-β-D-galactopyranosyl-(1->3)-β-D-xylopyranosyl)-28-O-β-D-glucopyranosylphytolaccagenin (3β,5α,25R)-26-(β-D-glucopyranosyloxy)furost-20(22)-en-3-yl O-β-D-xylopyranosyl-(1->3)-O-[β-D-glucopyranosyl-(1->2)]-O-β-D-glucopyranosyl-(1->4)-β-D-galactopyranoside 纤维素 D-threo-Pentosulose 山梨醇 (3β,5α,22R,25R)-26-(β-D-glucopyranosyloxy)-22-methoxyfurostan-3-yl O-β-D-xylopyranosyl-(1->3)-O-β-D-glucopyranosyl-(1->4)-O-[α-L-rhamnopyranosyl-(1->2)]-β-D-galactopyranoside 吡啶 (R)-(+)-2,2-二甲基-1,3-二氧戊环-4-甲醛 D-木酮糖 borivilianoside H myricetin 3-O-β-D-galactopyranoside 3'-O-β-D-xylopyranoside physenoside S7 orchidastroside A (3β,5α,22R,25R)-26-(β-D-glucopyranosyloxy)-22-hydroxyfurostan-3-yl O-β-D-xylopyranosyl-(1->3)-O-β-D-glucopyranosyl-(1->4)-O-[α-L-rhamnopyranosyl-(1->2)]-β-D-galactopyranoside physenoside S3 kaempferol 3-O-β-D-xylopyranosyl-(1→2)-α-L-arabinofuranosyl-7-O-α-L-rhamnopyranoside physenoside S5 impatienoside F orcinoside D D-(-)-阿拉伯糖 25(S)-ruscogenin 1-O-β-D-xylopyranosyl-(1→2)-[β-D-xylopyranosyl-(1→3)]-β-D-fucopyranoside yemuoside YM26 holotoxin D orchidastroside F sisalasaponin D orchidastroside D kaempferol 3-O-(β-D-xylopyranosyl(1->3)-(4-O-Z-p-coumaroyl-α-L-rhamnopyranosyl(1->2))[β-D-glucopyranosyl(1->6)]-β-D-galactopyranoside)-7-O-(α-L-rhamnopyranoside) 紫杉叶素 3-O-beta-D-吡喃木糖苷 cyanidin 3-O-[2-O-(β-xylopyranosyl)-β-galactopyranoside] 15-deoxyeucosterol 3-O-β-D-xylopyranosyl-(1->6)-O-β-D-glucopyranosyl-(1->3)-O-β-D-galactopyranosyl-(1->3)-O-β-D-glucopyranosyl-(1->3)-[O-α-L-rhamnopyranosyl-(1->2)]-O-β-D-glucopyranosyl-(1->2)-O-α-L-arabinopyranosyl-(1->6)- β-D-glucopyranoside (3β,16α)-16-hydroxy-30,30-dimethoxy-13,28-epoxyoleanan-3-yl β-D-glucopyranosyl-(1->2)-[β-D-xylopyranosyl-(1->2)-β-D-glucopyranosyl-(1->4)]-α-L-arabinopyranoside kaempferol 3-O-(β-D-xylopyranosyl(1->3)-(4-O-E-p-coumaroyl-α-L-rhamnopyranosyl(1->2))[β-D-glucopyranosyl(1->6)]-β-D-galactopyranoside)-7-O-(α-L-rhamnopyranoside) holotoxin E polystachyasaponin 刺蒺藜素 physenoside S8 physenoside S4 physenoside S6 26-O-β-D-glucopyranosyl-(25R)-5α-furostan-2α,3β,22α,26-tetraol 3-O-[β-D-glucopyranosyl-(1->2)-[β-D-xylopyranosyl-(1->3)]-β-D-glucopyranosyl-(1->4)]-β-D-galactopyranoside 3-O-β-D-xylopyranosyl-(1->2)-β-D-galactopyranosyl-(1->6)-2-acetamido-2-deoxy-β-D-glucopyranosyl echinocystic acid 16-O-β-D-glucopyranoside physenoside S2 terrestroside A

下游产品

Tri-O-acetyl-.α.-D-xylopyranosyl chloride 2,3-丁二酮 2-甲基四氢呋喃-3-酮 1,2-丙二醇 2-methylthiolan-3-one D(-)-来苏糖 2-甲基吡嗪 alpha-d-木吡喃糖苷苄酯 5-羟甲基糠醛 2,3-丁二醇 D-threo-Pentosulose D-木酮糖低聚木糖 L-(+)-阿拉伯糖乙醇 D(+)-阿拉伯糖醇羟基丙酮 4-羟基-5-甲基-3(2H)-呋喃酮 2-甲基-3-甲硫基呋喃 2-(二甲氧基甲基)呋喃糠醛 2-甲基-3-呋喃硫醇 DL-2,3-二羟基丙酸 D-(-)-阿拉伯糖 2-羟基丙酸 1,5-脱水-6-脱氧-6-硝基-L-山梨糖醇 2,3,4-三-O-乙酰基-α-D-木吡喃糖苷溴 D-核糖 4-甲基-5-(beta-羟乙基)噻唑 4-羟基-2,5-二甲基-3(2H)呋喃酮曲酸糠酸 2-乙基-4-羟基-5-甲基-3(2H)-呋喃酮乳酸甲酯乙酰丙酸 3-羟基-2-丁酮醋酸羟基乙酸 L-苏糖酸甲酸阿东糖醇 2-乙基-1,3,2-二氧硼戊环乙二醇甘油 3-巯基-2-丁酮丙酮醛 1,3-丙二醇甲醇 3-硫基-2-戊酮