(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenenitrile 20638-88-4 all-trans-Retinonitrile all-trans-Vitamin A Nitrile CAS 20638-88-4

Purity 97%+In StockPharmaceutical Standards
CAS No.20638-88-4
Molecular FormulaC20H27N
Molecular Weight281.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenenitrile 20638-88-4 all-trans-Retinonitrile all-trans-Vitamin A Nitrile CAS 20638-88-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 281.44 g/mol gives (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenenitrile 20638-88-4 all-trans-Retinonitrile all-trans-Vitamin A Nitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenenitrile 20638-88-4 all-trans-Retinonitrile all-trans-Vitamin A Nitrile (CAS 20638-88-4), a certified reference material (molecular formula C20H27N, MW 281.44 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenenitrile 20638-88-4 all-trans-Retinonitrile all-trans-Vitamin A Nitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 281.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), (2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraenenitrile 20638-88-4 all-trans-Retinonitrile all-trans-Vitamin A Nitrile meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC20H27N
Molecular Weight281.44 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms1

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