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PHR1030

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Tocopheryl Acetate, a

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

DL-α-Tocopherol acetate, Vitamin E acetate, all-rac-α-Tocopheryl acetate

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About This Item

Empirical Formula (Hill Notation):
C31H52O3
CAS Number:
Molecular Weight:
472.74
Beilstein:
97512
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

certified reference material
pharmaceutical secondary standard

Quality Level

Agency

traceable to Ph. Eur. T1600000
traceable to USP 1667701

API family

tocopherol

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

density

0.96 g/mL at 20 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

CC(C)CCC[C@@H](C)CCC[C@@H](C)CCC[C@]1(C)CCc2c(C)c(OC(C)=O)c(C)c(C)c2O1

InChI

1S/C31H52O3/c1-21(2)13-10-14-22(3)15-11-16-23(4)17-12-19-31(9)20-18-28-26(7)29(33-27(8)32)24(5)25(6)30(28)34-31/h21-23H,10-20H2,1-9H3/t22-,23-,31-/m1/s1

InChI key

ZAKOWWREFLAJOT-CEFNRUSXSA-N

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General description

Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to in-house working standards.

Application

α-Tocopheryl acetate may be used as an internal standard in the determination of α-tocopherol in human serum or plasma samples using high performance chromatography (HPLC). It may also be used pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using spectrophotometric technique.
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAC1696 in the slot below. This is an example certificate only and may not be the lot that you receive.

Recommended products

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

No data available

Flash Point(C)

No data available


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A routine method for the simultaneous measurement of retinol, ?-tocopherol and five carotenoids in human plasma by reverse phase HPLC
Talwar D, et al.
Clinica Chimica Acta; International Journal of Clinical Chemistry, 270, 85-100 (1998)
Simultaneous determination of retinol and alpha-tocopherol in serum or plasma by liquid chromatography
Catignani LG and Bieri GJ
Clinical Chemistry, 29, 708-712 (1983)
Flow injection spectrophotometric determination of vitamin E in pharmaceuticals, milk powder and blood serum using potassium ferricyanide-Fe (III) detection system
Jadoon S, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 21(6), 712-715 (2010)
Katharina M Espe et al.
Clinical journal of the American Society of Nephrology : CJASN, 8(3), 452-458 (2013-01-22)
Trials with the antioxidant vitamin E have failed to show benefit in the general population. Considering the different causes of death in ESRD, this study investigated the association between plasma concentrations of α-tocopherol and specific clinical outcomes in diabetic hemodialysis
Kristin I Løken-Amsrud et al.
PloS one, 8(1), e54417-e54417 (2013-01-26)
Alpha-tocopherol is the main vitamin E compound in humans, and has important antioxidative and immunomodulatory properties. The aim of this study was to study alpha-tocopherol concentrations and their relationship to disease activity in Norwegian multiple sclerosis (MS) patients. Prospective cohort

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