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Merck
CN
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文件

A5960

Sigma-Aldrich

L -抗坏血酸

BioXtra, ≥99.0%, crystalline

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别名:
维他命C, 抗坏血病因子, 维生素C
经验公式（希尔记法）:
C6H8O6
CAS号:
50-81-7
分子量:
176.12
Beilstein:
84272
EC 号:
200-066-2
MDL编号:
MFCD00064328
UNSPSC代码:
12352209
PubChem化学物质编号:
24891042
NACRES:
NA.26

产品线

BioXtra

质量水平

200

检测方案

≥99.0%

形式

crystalline

技术

cell culture | mammalian: suitable

杂质

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter

灼烧残渣

≤0.1%

颜色

white to off-white

pH值（酸碱度）

1.0-2.5 (25 °C, 176 g/L in water)

mp

190-194 °C (dec.)

溶解性

H2O: 0.5 M, clear, colorless

痕量阴离子

sulfate (SO42-): ≤0.05%

痕量阳离子

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

SMILES字符串

OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O

InChI

1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1

InChI key

CIWBSHSKHKDKBQ-JLAZNSOCSA-N

基因信息

human ... SLC23A2(9962)

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相关类别

一般描述

抗坏血酸又称维生素C，其中含有植物和某些动物物种合成的六碳内酯，而人类和其他灵长类动物无法合成这一成分。维生素C是水溶性维生素。维生素C是各类柑橘类水果所含的成分，如印度醋栗、西兰花、草莓、抱子甘蓝。L-抗坏血酸是抗坏血酸的生物活性形式。这种成分性质不稳定且亲水。抗坏血酸带有中性电荷，可通过质子化转变为抗坏血酸盐。

应用

  • L-抗坏血酸已可用于诱导成骨细胞从原代骨髓培养物中的分化。
  • 它已被用来分化hCMPCs(人心肌细胞祖细胞)成心肌细胞。
  • 它被用来测量线粒体电子传递链(复合物IV)的活性。

生化/生理作用

L-抗坏血酸参与神经递质、肉碱和胶原蛋白合成。抗坏血酸可作为多种酶的酶促辅助因子，可用作单加氧酶和双加氧酶的电子供体。抗坏血酸还起到强力抗氧化剂的作用，特别是对活性氧。维生素C表现出抗氧化特性。维生素C与皮肤抗光老化和抗衰老有关。维生素C缺乏与坏血病、牙龈出血、伤口愈合不良、贫血和肌肉萎缩有关。

注意

储存期间颜色可变暗。

其他说明

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相关产品

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说明
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WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

分析证书(COA)

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. Is L-ascorbic acid, Product A5960, the same as vitamin C?

    Yes, L-ascorbic acid is a synonym for vitamin C.

  4. What is the solution stability of L-ascorbic acid, Product A5960?

    Aqueous solutions are stable only in the absence of oxygen.  Aqueous solutions are most stable at pH 5-6, very unstable at alkaline pH. (Data for Biochemical Research, 3rd ed., Dawson, R. M. C., et al., Oxford University Press (New York, NY: 1986), p. 116)  Degradation is markedly increased in the presence of transition metal ions, especially Cu(II) and Fe(III).  The first stage of oxidation of L-ascorbic acid to dehydroascorbic acid is reversible and the biological activity is retained.  Further oxidation to 2,3-diketogulonic acid is not reversible and the activity is lost. (Omura, H., and Yamafuji, K., in Methodicum Chimicum, 11(2), Korte, F., and Goto, M., eds., Academic Press (New York, NY: 1977), p. 115).

  5. What is the pKa of L-ascorbic acid, Product A5960?

    The pKa values for L-ascorbic acid (from the chemicals encyclopedia published by the Royal Society of Chemistry) are 4.17 and 11.57.

  6. What is the extinction coefficient of L-ascorbic acid, Product A5960?

    According to the Data for Biochemical Research, 3rd ed., Dawson, R. M. C., et al., Oxford University Press (New York, NY 1986), p. 116, the L-ascorbic acid extinction coefficient: EmM = 7.0 (265 nm, water), 7.5 (245 nm, acid).

  7. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  8. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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Vitamin C in health and disease: its role in the metabolism of cells and redox state in the brain
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