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PHR1031

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Alpha Tocopherol

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym(s):

(±)-α-Tocopherol, DL-all-rac-α-Tocopherol, Vitamin E

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About This Item

Empirical Formula (Hill Notation):
C29H50O2
CAS Number:
Molecular Weight:
430.71
Beilstein:
94012
EC Number:
MDL number:
UNSPSC Code:
41116107
eCl@ss:
34058016
PubChem Substance ID:
NACRES:
NA.24

grade

certified reference material
pharmaceutical secondary standard

Quality Level

Agency

traceable to BP 882
traceable to Ph. Eur. T1550000
traceable to USP 1667600

API family

tocopherol

CofA

current certificate can be downloaded

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

density

0.950 g/mL at 20 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

storage temp.

2-8°C

SMILES string

CC(C)CCCC(C)CCCC(C)CCCC1(C)CCc2c(C)c(O)c(C)c(C)c2O1

InChI

1S/C29H50O2/c1-20(2)12-9-13-21(3)14-10-15-22(4)16-11-18-29(8)19-17-26-25(7)27(30)23(5)24(6)28(26)31-29/h20-22,30H,9-19H2,1-8H3

InChI key

GVJHHUAWPYXKBD-UHFFFAOYSA-N

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General description

α-Tocopherol is a powerful biological antioxidant and the most active form of vitamin E in humans.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

α-Tocopherol may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using flow injection chemiluminescence 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 LRAB3718 in the slot below. This is an example certificate only and may not be the lot that you receive.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup


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Flow-injection determination of retinol and tocopherol in pharmaceuticals with acidic potassium permanganate chemiluminescence
Waseem A, et al.
Analytical Sciences, 25(3), 407-412 (2009)
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)
Sarwat Jahan et al.
Systems biology in reproductive medicine, 60(4), 199-205 (2014-04-25)
The present study was performed to determine the effects of different antioxidants on testicular histopathology and oxidative damage induced by cadmium (Cd) in rat testis and prostate. Twenty five rats were equally divided into five groups (n = 5/group). The control group
Kirsten G Coupland et al.
Movement disorders : official journal of the Movement Disorder Society, 29(13), 1606-1614 (2014-01-01)
Parkinson's disease (PD) is a neurodegenerative disorder for which environmental factors influence disease risk and may act via an epigenetic mechanism. The microtubule-associated protein tau (MAPT) is a susceptibility gene for idiopathic PD. Methylation levels were determined by pyrosequencing of
Sam B Weber et al.
Proceedings. Biological sciences, 279(1731), 1077-1084 (2011-09-23)
The effect of climate warming on the reproductive success of ectothermic animals is currently a subject of major conservation concern. However, for many threatened species, we still know surprisingly little about the extent of naturally occurring adaptive variation in heat-tolerance.

Protocols

HPLC Analysis of Fat Soluble Vitamins by Normal Phase Chromatography on Ascentis® S

Separation of δ-Tocopherol, analytical standard; Retinyl acetate; (+)-γ-Tocopherol; α-Tocopherol, ≥95.5%; Retinol; Vitamin A (acetate), meets USP testing specifications.

Separation of Retinyl acetate, analytical standard; δ-Tocopherol, analytical standard; Ergocalciferol (D2), analytical standard; Cholecalciferol (D3), analytical standard; (±)-α-Tocopherol, analytical standard; Vitamin E acetate, analytical standard; Phylloquinone (K1), analytical standard; Retinol palmitate, analytical standard.

Protocol for HPLC Analysis of Fat Soluble Vitamins on Ascentis® Express RP-Amide, Acetonitrile Mobile Phase

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