D-异抗坏血酸

Erythorbic acid (D-Isoascorbic acid) 是一种主要用于肉类、家禽和软饮料的食品添加剂,由不同来源的糖 (如甜菜、甘蔗和玉米) 制成。

[ 描述 ]:

[ 相关类别 ]:

[ 密度 ]:
2.0±0.1 g/cm3

[ 沸点 ]:
552.7±50.0 °C at 760 mmHg

[ 熔点 ]:
167-172ºC

[ 分子式 ]:
C₆H₈O₆

[ 分子量 ]:
176.124

[ 闪点 ]:
238.2±23.6 °C

[ 精确质量 ]:
176.032089

[ PSA ]:
107.22000

[ LogP ]:
-2.41

[ 外观性状 ]:
结晶

[ 蒸汽压 ]:
0.0±3.4 mmHg at 25°C

[ 折射率 ]:
1.711

[ 储存条件 ]:
库房低温,通风,干燥

详细MSDS(安全技术说明书)

CHEMICAL IDENTIFICATION

RTECS NUMBER :

KF3015000

CHEMICAL NAME :

D-erythro-Hex-2-enonic acid, gamma-lactone

CAS REGISTRY NUMBER :

89-65-6

BEILSTEIN REFERENCE NO. :

0084271

LAST UPDATED :

199710

DATA ITEMS CITED :

7

MOLECULAR FORMULA :

C6-H8-O6

MOLECULAR WEIGHT :

176.14

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :

DNA damage

TEST SYSTEM :

Mammal - species unspecified Lymphocyte

DOSE/DURATION :

5 mmol/L

REFERENCE :

JNSVA5 Journal of Nutritional Science and Vitaminology. (Business Center for Academic Soc. Japan, 2-4-16 Yayoi, Bunkyo-ku, Tokyo 113, Japan) V.19- 1973- Volume(issue)/page/year: 21,237,1975 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81667 No. of Facilities: 597 (estimated) No. of Industries: 7 No. of Occupations: 10 No. of Employees: 3440 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81667 No. of Facilities: 608 (estimated) No. of Industries: 13 No. of Occupations: 25 No. of Employees: 10270 (estimated) No. of Female Employees: 2087 (estimated)

[ 符号 ]:

GHS07

[ 信号词 ]:
Warning

[ 危害声明 ]:
H315-H319-H335

[ 警示性声明 ]:
P261-P305 + P351 + P338

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Gloves

[ 危害码 (欧洲) ]:
Xi: Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S24/25

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
2

[ RTECS号 ]:
KF3015000

[ 海关编码 ]:
2932209090

详细合成路线

D-异抗坏血酸上游产品

D-异抗坏血酸下游产品

1、以玉米淀粉为原料，通过发酵成葡萄糖酸来制得。日本藤泽药品公司采用的工艺过程是：由玉米淀粉制得葡萄糖，然后制成2-古罗酮糖酸甲酯(Methly2-ketogluconate)，用甲醇钠处理得到异抗坏血酸钠，再通过离子交换树脂脱盐，即制得异抗坏血酸。

2、两步法 先生物合成2-酮基-D-葡萄糖酸，然后化学合成D-异抗坏血酸。能氧化葡萄糖生成2-酮基-葡萄菌、粘质赛氏杆菌、欧文氏菌等。发酵完成后，用碳酸钙中和发酵液，然后进行分类分离和提取。2-酮基2-D葡萄糖酸可由发酵液经游离酸提取或钙盐提取而得。

（1）游离酸提取

（2）钙盐提取

（3）合成D-异抗坏血酸

3.　采用发酵法。由荧光极毛杆菌 （Pseudomonas fluorescence）使葡萄糖通气发酵 （28℃，50h） ，得α- 酮葡糖酸钙，接着用甲醇和硫酸使其形成甲酯。添加甲醇氢氧化钠溶液进行烯醇化反应而得。

[ 海关编码 ]: 2932209090

[ 中文概述 ]:
2932209090. 其他内酯. 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 ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Effect of meat ingredients (sodium nitrite and erythorbate) and processing (vacuum storage and packaging atmosphere) on germination and outgrowth of Clostridium perfringens spores in ham during abusive cooling.

Food Microbiol. 35(2) , 108-15, (2013)

The effect of nitrite and erythorbate on Clostridium perfringens spore germination and outgrowth in ham during abusive cooling (15 h) was evaluated. Ham was formulated with ground pork, NaNO2 (0, 50, ...

The effect of antibrowning agents on inhibition of potato browning, volatile organic compound profile, and microbial inhibition.

J. Food Sci. 77(11) , C1234-40, (2012)

Burbank and Norkotah potato slices were dipped into 3% sodium acid sulfate (SAS), citric acid (CA), sodium erythorbate (SE), malic acid (MA), sodium acid pyrophosphate (SAPP), or a combination of SAS-...

Study on mitigation of acrylamide formation in cookies by 5 antioxidants.

J. Food Sci. 77(11) , C1144-9, (2012)

This study investigated the capacity of various antioxidants in reducing the formation of acrylamide during cookie processing. Five antioxidants, antioxidants of bamboo leaves (AOB), sodium erythorbat...

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公司名：上海化源世纪贸易有限公司

区域：上海市普陀区

价格：

联系人：徐经理

产品详情：D-异抗坏血酸

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公司名：南通润丰石油化工有限公司

区域：南通市崇川区

价格：
￥需询单/1kg ￥需询单/1ton

联系人：曹经理

产品详情：D-异抗坏血酸

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公司名：上海吉至生化科技有限公司

区域：上海市奉贤区

价格：
￥108.0/100g ￥338.0/500g

联系人：刘佳

产品详情：D-异抗坏血酸

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公司名：上海脉铂医药科技有限公司

区域：上海市嘉定区

价格：
￥285.0/250mg

联系人：李先生

产品详情：D-异抗坏血酸

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公司名：上海阿拉丁生化科技股份有限公司

区域：上海市浦东新区

价格：
￥1287.9/1g ￥720.9/500mg ￥384.9/250mg ￥56.9/100g

联系人：阿拉丁

产品详情：D-异抗坏血酸

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