The material specification is 'powder or crystals', which means it can vary from batch to batch. Ascorbic acid can donate electrons, facilitating the reduction of protons (H?) to hydrogen gas (H?). Its ability to undergo oxidation makes it a suitable candidate for these hydrogen evolution reactions. This product has not been tested internally for this application. Given the high purity of this material, it is likely suitable, but this would need to be determined by the end user.
95209
L-Ascorbic acid
BioUltra, ≥99.5% (RT)
Synonim(y):
L-Threoascorbic acid, Antiscorbutic factor, Vitamin C
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Wybierz wielkość
50 G
268,00 zł
250 G
922,00 zł
1 KG
2930,00 zł
268,00 zł
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Informacje o tej pozycji
Wzór empiryczny (zapis Hilla):
C6H8O6
Numer CAS:
Masa cząsteczkowa:
176.12
UNSPSC Code:
12352205
NACRES:
NA.79
PubChem Substance ID:
EC Number:
200-066-2
Beilstein/REAXYS Number:
84272
MDL number:
Assay:
≥99.5% (RT)
Form:
powder or crystals
Grade:
biotech. grade
Przejdź do
Pomoc techniczna
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Pozwól nam pomócInChI key
CIWBSHSKHKDKBQ-JLAZNSOCSA-N
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
SMILES string
OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O
biological source
synthetic
grade
biotech. grade
product line
BioUltra
assay
≥99.5% (RT)
form
powder or crystals
impurities
insoluble matter, passes filter test
ign. residue
≤0.05% (as SO4)
loss
≤0.05% loss on drying, 20 °C (HV)
color
white to off-white
pH
1.0-2.5 (25 °C, 1 M in H2O)
mp
190-194 °C (dec.)
solubility
H2O: 1 M at 20 °C, clear, colorless
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤20 mg/kg
cation traces
Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤25 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg
absorption
cut-off at 306 nm in H2O at 1 M
Quality Level
Gene Information
human ... SLC23A2(9962)
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Ta pozycja | |||
|---|---|---|---|
| assay ≥99.5% (RT) | assay ≥99.0% (RT) | assay ≥98% | assay 99.0-100.5% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form powder or crystals | form powder or crystals (possibly with chunks) | form powder | form solid |
| solubility H2O: 1 M at 20 °C, clear, colorless | solubility H2O: 50 mg/mL at 20 °C, clear, almost colorless | solubility water: soluble 50 mg/mL | solubility water: soluble 176 g/L at 20 °C |
| pH 1.0-2.5 (25 °C, 1 M in H2O) | pH 2.2-2.5 (25 °C, 50 mg/mL in H2O) | pH 1.0-2.5 (25 °C, 176 g/L in water) | pH 1.0-2.5 (25 °C, 176 g/L in water) |
| mp 190-194 °C (dec.) | mp 190-194 °C (dec.) | mp 190-194 °C (dec.) | mp 190-194 °C (dec.) |
General description
Application
Biochem/physiol Actions
L-Ascorbic acid (Vitamin C) acts as a potential anti-oxidant[6] and reducing agent.[7] It prevents bacterial mutagenesis induced by N-nitroso compounds.[8] In plants, vitamin C elicits several cellular processes such as growth, apoptosis, pathogen responses, hormone responses, flowering and senescence, and protection against environmental stresses. [7] Vitamin C deficiency is associated with the development of scurvy, prominent - gingivitis, perifollicular hemorrhages, poor wound healing, petechiae and ecchymosis.[2]
Other Notes
Denaturation of proteins; Dimeric association of E. coli RNA polymerase α subunits, studied by cleavage of single cysteine α subunits conjugated to Fe-BABE.
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Klasa składowania
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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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Calcium Imaging Techniques In Vitro to Explore the Role of Dendrites in Signaling Physiological Action Potential Patterns
Neuromethods, 165-187 (2012)
Calcium Imaging Techniques In Vitro to Explore the Role of Dendrites in Signaling Physiological Action Potential Patterns
Bonnan A, et al.
The Journal of applied nutrition (1953)
F C Brown et al.
Neurochemical research, 3(3), 357-366 (1978-06-01)
Under conditions that are optimum for DbetaH, ascorbic acid denatures serum albumin, gamma-globulin, catalase, and DbetaH. With ascrobate plus Cu2+, the proteins are almost completely destroyed. Pyrazole protects DbetaH and albumin, but not catalase. Superoxide dismutase (SOD) is not denatured
Inhibition by L-ascorbate of bacterial mutagenesis induced by two N-nitroso compounds
Guttenplan JB
Nature, 268(5618), 368-368 (1977)
L-Ascorbate biosynthesis in higher plants: the role of VTC2
Linster CL and Clarke SG
Trends in Plant Science, 13(11), 567-573 (2008)
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The material is in powder or crystal form and whether it’s suitable for hydrogen evolution reaction (HER) measurements?
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