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Merck

A0278

Acido L-ascorbico

reagent grade

Sinonimo/i:

Acido L-treoascorbico, Fattore antiscorbuto, Vitamina C

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25 G

28,13 €

100 G

66,38 €

500 G

177,00 €

1 KG

331,00 €

28,13 €

Prezzo di listino33,10 €Risparmia il 15%
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Informazioni su questo articolo

Formula empirica (notazione di Hill):
C6H8O6
Numero CAS:
50-81-7
Peso molecolare:
176.12
UNSPSC Code:
12352209
NACRES:
NA.26
PubChem Substance ID:
24890417
EC Number:
200-066-2
Beilstein/REAXYS Number:
84272
MDL number:
MFCD00064328

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Nome del prodotto

Acido L-ascorbico, reagent grade

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

SMILES string

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

biological source

synthetic

grade

reagent grade

assay

≥98% (with Iodine, titration)

form

powder

technique(s)

HPLC: suitable

color

white to light yellow

pH

1.0-2.5 (25 °C, 176 g/L in water)

mp

190-194 °C (dec.)

solubility

water: soluble 50 mg/mL

Quality Level

200

Gene Information

human ... SLC23A2(9962)

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Questo articolo
A750625556433034
Acido L-ascorbico reagent grade

Sigma-Aldrich

A0278

Acido L-ascorbico

Acido L-ascorbico reagent grade, crystalline

Sigma-Aldrich

A7506

Acido L-ascorbico

Acido L-ascorbico ACS reagent, ≥99%

Sigma-Aldrich

255564

Acido L-ascorbico

Acido L-ascorbico puriss. p.a., ACS reagent, reag. ISO, Ph. Eur., 99.7-100.5% (oxidimetric)

Sigma-Aldrich

33034

Acido L-ascorbico

grade

reagent grade

grade

reagent grade

grade

ACS reagent

grade

ACS reagent, puriss. p.a.

assay

≥98% (with Iodine, titration)

assay

≥98% ( with iodine, titration)

assay

≥99%

assay

99.7-100.5% (oxidimetric)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

form

powder

form

crystalline

form

crystals or granules, powder or chunks

form

solid

pH

1.0-2.5 (25 °C, 176 g/L in water)

pH

1.0-2.5 (25 °C, 176 g/L in water)

pH

1.0-2.5 (25 °C, 176 g/L in water)

pH

2.1-2.6 (20 °C, 5%)

solubility

water: soluble 50 mg/mL

solubility

water: soluble 50 mg/mL

solubility

water: soluble 176 g/L at 20 °C

solubility

water: soluble 176 g/L at 20 °C

Application

L-Ascorbic acid has been used as a standard in high performance liquid chromatography (HPLC) for quantification of L-ascorbic acid.[1]
L-Ascorbic acid may be used as standard in assay for erythrocyte hemolysis mediated by peroxyl free radicals.[2] It may be used for the reduction of graphene oxide sheets.[3]

Biochem/physiol Actions

L-Ascorbic acid is an anti-oxidant. L-Ascorbic acid (vitamin C) is important for many enzymatic reactions for maintaining prosthetic metal ions in their reduced forms (for example, Fe2+, Cu+). It protects tissues from oxidative damage by scavenging free radicals.[4] It has mild reductive ability and nontoxic property. It is commonly employed reductant in the laboratory.[3] Colorimetric determination of ascorbic acid in plasma using acid phosphotungstate has been reported.[5]
L-ascorbic acid modified poly(ester urethane)s might facilitate soft tissue regeneration.[6] It also helps in increasing iron absorption by tissues. In addition, it aids in tyrosine metabolism and microsomal drug metabolism.[7]

Disclaimer

May darken in storage.

General description

Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates.[7] It is a water-soluble vitamin.[8]

Classe di stoccaggio

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
0000508853
0000508841
0000508841
0000508853
0000483328

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Synthesis and characterization of cycloaliphatic hydrophilic polyurethanes, modified with L-ascorbic acid, as materials for soft tissue regeneration
Kucinska-Lipka J, et al.
Materials Science & Engineering. C, Materials For Biological Applications, 75(3), 671-681 (2017)
Jk Psc Quick Review for Medical Officers: A Useful Manual For NEET, AIIMS and PGI Md/Ms. Entrance Exams (2018)
Dehydrofreezing of pineapple
Ramallo LA and Mascheroni RH
Journal of Food Engineering, 99(3), 269-275 (2010)
Gemma Rush et al.
Parasitology, 146(9), 1184-1187 (2019-03-13)
Bovine trichomoniasis is a notifiable, reproductive disease of cattle caused by the parasite Tritrichomonas foetus. Culturing with modified Diamond's medium (MDM) is required to increase the low number of organisms received from a preputial sample, but is limited in application
A family of mammalian NaI[plus]I-dependent L-ascorbic acid transporters.
Tsukaguchi H, et al.
Nature, 673(1), 70-75 (1999)
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Domande

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Utile?

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