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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
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

technique(s)

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 string

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

Gene Information

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

2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

相关产品

产品编号
说明
价格

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

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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).

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

    Ask a Scientist here.

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