Ethyl 8'-apo-β-caroten-8'-oate 10% dark red to purple crystalline powder RC00046

1. Manufacturer: Hangzhou Royalchem Co.,LTD.

   Website:  www.cnroyalchem.com

   Chemical Names & Identifiers:

Preferred IUPAC Name:   Ethyl (2E,4E,6E,8E,10E,12E,14E,16E)-2,6,11,15-tetramethyl-17-(2,6,6-trimethylcyclohex-1-en-1-yl)heptadeca-2,4,6,8,10,12,14,16-octaenoate

Common Synonyms:

Ethyl 8'-apo-β-caroten-8'-oate

Ethyl 8'-apo-β-carotenoate

C30-Apo-carotenoic Acid Ethyl Ester

C30-Ester  (Frequently used commercial name)

Ethyl β-apo-8'-carotenoate

CAS Registry Number:  1109-11-1

Molecular Formula:  C₃₂H₄₄O₂

Molecular Weight:  460.70 g/mol

1. Appearance:  Typically supplied as a  dark red to purple crystalline powder  or sometimes as a viscous oil/resin. Solutions are intensely colored (red to orange).
2. Solubility:

Soluble in:  Organic solvents (chloroform, dichloromethane, acetone, ethyl acetate, toluene, hexane), fats, oils.

Sparingly soluble/Practically insoluble in:  Water, glycerol, propylene glycol.

Soluble in Ethanol:  This is an important characteristic distinguishing it from longer-chain carotenoids (like β-carotene), making it potentially more versatile in some formulations.

1. Melting Point:  Approximately 134-138°C (for crystalline form).
2. Stability:

Highly sensitive to  light, heat, and oxygen , like most carotenoids.

Requires storage under  inert atmosphere (argon, nitrogen)  and protection from light.

Typically stored refrigerated or frozen for long-term stability.

1. Primary Applications:

Animal Feed Additive (Major Use):  Added to poultry feed (especially broiler chickens) to enhance the  yellow/orange pigmentation  of skin, legs, beak, and egg yolks. Acts as a precursor/metabolite for deposition.

Human Nutrition (Supplements):  Used as a source of Vitamin A activity (provitamin A carotenoid), though less potent than β-carotene. Also valued as an antioxidant.

Food Colorant:  Approved as a food additive (E 160f) in the  European Union (EFSA)  for coloring various foods (e.g., beverages, desserts, sauces, confectionery).  Note: Not currently approved as a color additive by the US FDA.

Cosmetics:  Used as a colorant in some cosmetic products (CI 75125).

1. Regulatory Status:

EU:  Approved as food additive E 160f (Ethyl ester of beta-apo-8'-carotenic acid).

USA:  Not listed as a color additive exempt from certification (21 CFR 73) or subject to certification (21 CFR 74) by the FDA. May have GRAS (Generally Recognized As Safe) status for specific uses under petition.

Other Regions:  Check local regulations (e.g., JECFA evaluations often support international approvals).

1. Key Properties for Use:

Provitamin A activity (converted to Vitamin A/Retinol in the body).

Potent natural colorant (yellow-orange-red hues).

Antioxidant activity.

1. Storage Conditions:

Store in tightly sealed original containers  under inert gas (N₂ or Ar) .

Protect from  light  (amber glass vials or opaque containers).

Store at  2-8°C (refrigerated)  for short-medium term or  -20°C (frozen)  for long-term stability.

Avoid exposure to heat and humidity.

1. Safety:   Generally considered safe when used as intended. Standard laboratory precautions should be used when handling (avoid inhalation of dust, avoid contact with eyes/skin). Consult Safety Data Sheet (SDS) for specific handling and safety information.