L-(+)-Gulono-1,4-lactone丨CAS 1128-23-0

L-(+)-Gulono-1,4-lactone丨CAS 1128-23-0 is a naturally occurring lactone and a key biological precursor in the biosynthesis of ascorbic acid (vitamin C). It plays a vital role in metabolism, pharmaceutical synthesis, and nutritional science. Though some mammals can convert this compound into vitamin C endogenously, humans lack this capability due to a genetic mutation that inactivates the necessary enzyme, L-gulonolactone oxidase.

Applications

1. Precursor in Vitamin C (Ascorbic Acid) Synthesis

The most critical application of L-(+)-Gulono-1,4-lactone is as a biosynthetic or chemical precursor to ascorbic acid (vitamin C). In organisms capable of endogenous vitamin C synthesis (e.g., rodents, some primates), gulonolactone is converted into ascorbic acid via:

L-gulonolactone oxidase (an enzyme absent in humans)

In the industrial production of vitamin C, it can be:

Used in semi-synthetic pathways

Applied in biotechnological fermentation processes using engineered microbes

2. Pharmaceutical Intermediate

L-(+)-Gulono-1,4-lactone丨CAS 1128-23-0 is utilized in the synthesis of:

Vitamin C derivatives, such as sodium ascorbate and calcium ascorbate

Ascorbyl palmitate (a fat-soluble antioxidant)

Ascorbic acid phosphate esters (used in skincare formulations)

It plays a role in stereoselective organic synthesis, especially for drugs that require a hydrophilic lactone ring or sugar-like scaffold.

3. Nutritional and Biochemical Research

This compound is extensively used in:

Nutritional studies of vitamin C deficiency (scurvy) in animal models

Investigations on redox biology and collagen biosynthesis

Testing the bioavailability and efficacy of various vitamin C precursors

In metabolic engineering, L-gulonolactone is a core target for constructing vitamin C biosynthetic pathways in non-native hosts like E. coli and Saccharomyces cerevisiae.

4. Cosmetic and Dermatological Products

Because it is a precursor to ascorbic acid, L-(+)-Gulono-1,4-lactone has potential in:

Topical antioxidant formulations

Anti-aging and brightening skincare products

Skin-repair creams aimed at collagen synthesis

Some novel skincare formulations use gulonolactone-based compounds to deliver stable vitamin C that becomes active in the skin.

5. Potential Functional Food Additive

Though not yet mainstream, it may be used in:

Functional foods or supplements intended to boost natural vitamin C levels in synergy with other ingredients

Pre-vitamin complexes in advanced nutrition systems

It can be combined with co-factors that support vitamin C biosynthesis in experimental or veterinary nutrition.

Benefits

1. Key Intermediate for Vitamin C Biosynthesis

L-(+)-Gulono-1,4-lactone丨CAS 1128-23-0 is the immediate precursor of ascorbic acid in several animal species.

This makes it crucial in the industrial synthesis of vitamin C, both via fermentation and chemical conversion.

Its use helps streamline the production of high-purity, bioavailable vitamin C.

2. Powerful Antioxidant Potential (via Ascorbic Acid Conversion)

Once converted to vitamin C, it contributes to:

Free radical scavenging

Immune function enhancement

Skin protection from UV damage

Reduction of oxidative stress linked to aging and chronic disease

3. Applications in Anti-aging and Dermatology

Promotes collagen biosynthesis

Supports skin repair and elasticity

May help reduce wrinkles, fine lines, and pigmentation when formulated effectively

4. Non-toxic and Biocompatible

L-(+)-Gulono-1,4-lactone is generally recognized as safe (GRAS) when used in pharmaceutical or food-grade applications.

It has low toxicity and excellent biocompatibility, especially when metabolized into vitamin C.

5. Tool for Biomedical and Genetic Research

Its role in vitamin C biosynthesis pathways makes it a valuable tool in genetic engineering, particularly in designing probiotic strains or functional microbes capable of endogenous ascorbic acid production.

In studies of evolutionary biology, gulonolactone helps illustrate how humans and some primates lost the ability to synthesize vitamin C.

Conclusion

L-(+)-Gulono-1,4-lactone丨CAS 1128-23-0 is a versatile and scientifically significant compound, best known as a biosynthetic precursor to vitamin C. It serves pivotal roles in pharmaceutical manufacturing, nutritional science, metabolic engineering, and cosmetic applications. With a direct link to human health, aging, and immunity through its ascorbic acid pathway, this compound remains essential in both industrial and biomedical domains. Its safe, natural profile and multifunctionality make it a foundational molecule with growing potential in functional foods, therapeutics, and anti-aging research.