L(+)-抗坏血酸

产品名称

L(+)-抗坏血酸, for analysis EMSURE^® ACS,Reag. Ph Eur

InChI

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

InChI key

TYQCGQRIZGCHNB-UHFFFAOYSA-N

grade

ACS reagent

agency

reag. Ph. Eur.

product line

EMSURE^®

assay

99.0-100.5% (iodometric)

form

crystalline powder

autoignition temp.

380 °C

potency

11900 mg/kg LD₅₀, oral (Rat)

technique(s)

thin layer chromatography (TLC): suitable

impurities

≤0.1% Related substances (unspecified impurities singly) (HPLC)
≤0.15% Related substances (Impurity C) (HPLC)
≤0.15% Related substances (Impurity D) (HPLC)
≤0.2% Oxalic acid
≤0.2% Related substances (sum of impurities (except impurity A and D)) (HPLC)

sulfated ash (600 °C)

≤0.05%

loss

≤0.1% loss on drying, 105 °C

color

clear

pH

2.2-2.5 (20 °C, 50 g/L in H₂O)

solubility

330 g/L

density

1.65 g/cm³ at 20 °C

bulk density

500‑900 kg/m³

anion traces

chloride (Cl^-): ≤50 ppm
sulfate (SO₄^2-): ≤20 ppm

cation traces

Cu: ≤5 ppm
Fe: ≤2 ppm
heavy metals: ≤10 ppm

storage temp.

15-25°C

Quality Level

300