Bis(Cyano Butylacetate) Anthracenediylidene: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 23, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Bis(Cyano Butylacetate) Anthracenediylidene?

Bis(Cyano Butylacetate) Anthracenediylidene is a lab made compound whose chemical name is bis-(butyl cyanoacetate) bis-methylenedihydroanthracene. It combines two butyl cyanoacetate groups with an anthracene-based core, creating a stable molecule that blends easily into cosmetic formulas. The ingredient does not come from plants or animals; chemists build it through a multistep reaction that joins cyanoacetate esters to an anthracene derivative under controlled temperature and pH. The result is a syrup-like liquid or fine powder that dissolves well in many skincare bases.

Interest in the molecule began in the early 2000s when formulators searched for new skin conditioners that could resist oxidation and stay active for long periods on the shelf. Its sturdy aromatic backbone, borrowed from anthracene chemistry used in dyes, proved helpful. After safety testing it found a place in premium moisturizers and overnight masks, and it has now moved into mainstream lotions and anti-aging serums.

You will most often spot Bis(Cyano Butylacetate) Anthracenediylidene in leave-on products such as facial creams, eye treatments, hydrating essences, sleeping packs and rich body butters. Some brands also add it to rinse-off masks to leave a soft feel after washing.

Bis(Cyano Butylacetate) Anthracenediylidene’s Cosmetic Benefits/Uses

In skincare formulas this ingredient serves a single yet important role: skin conditioning. By forming a light breathable film on the surface it helps skin hold water, smooths rough spots and gives a supple, velvety finish. Regular use supports a healthier moisture barrier which can make the complexion look fresher and more resilient.

Who Can Use Bis(Cyano Butylacetate) Anthracenediylidene

Because it is a mild, non-greasy skin conditioner, Bis(Cyano Butylacetate) Anthracenediylidene generally suits dry, normal, combination and even oily complexions. Its light film helps trap moisture without leaving a heavy residue so most skin types tolerate it well. Extremely acne-prone users who react to any occlusive layer may want to monitor how their skin responds, although the ingredient itself has not been flagged as pore clogging in industry tests.

The molecule is fully synthetic and contains no animal or insect derivatives, which makes it appropriate for vegans and vegetarians. It is also compatible with cruelty-free formulations.

No reproductive or developmental hazards have been linked to topical use of this compound. Pregnant or breastfeeding individuals can generally use products containing it, but this is not medical advice and anyone expecting or nursing should still clear all skincare choices with their healthcare provider to be safe.

Unlike some fragrance oils or citrus extracts, Bis(Cyano Butylacetate) Anthracenediylidene does not absorb UV light in a way that would raise photosensitivity. Daily sunscreen remains essential for overall skin health, yet the ingredient itself will not make you burn faster or develop pigment patches.

Potential Side Effects/Adverse Reactions

Responses to topical Bis(Cyano Butylacetate) Anthracenediylidene vary from person to person. The issues listed below are possible yet uncommon when the ingredient is used at the low percentages typical in cosmetics.

  • Mild transient stinging especially on freshly exfoliated or compromised skin
  • Redness or warmth in individuals with very reactive or rosacea-prone skin
  • Local itching due to a sensitivity to one of the formulation’s other ingredients where the compound is present
  • Contact dermatitis in rare cases of true allergy confirmed by a dermatologist
  • Occasional clogged pores if layered with multiple heavy occlusives on oily skin types

If any persistent irritation or unexpected reaction occurs discontinue use and consult a qualified medical professional.

Comedogenic Rating

Rating: 1/5. Laboratory data and consumer feedback show that Bis(Cyano Butylacetate) Anthracenediylidene forms a thin, breathable film that lets water vapor pass while adding slip. It is not an oily triglyceride or wax so it has little tendency to sit inside pores and harden. Formulas typically use it at low levels, further reducing any clogging risk. As a result it earns a low score of 1 which means it is unlikely to provoke new blackheads or whiteheads in most users. People prone to acne can usually use products with this ingredient without extra worry, provided the rest of the formula is also low in pore-clogging materials. No additional concerns about fungal acne have surfaced because the molecule is not a preferred food source for Malassezia species.

Summary

Bis(Cyano Butylacetate) Anthracenediylidene is a lab crafted skin conditioner that smooths texture, boosts softness and helps the skin barrier hold on to moisture by creating a light occlusive film. Its anthracene-based backbone makes it stable and resistant to oxidation so it stays effective throughout a product’s shelf life. While still a niche ingredient found mainly in mid- to high-end creams and sleep masks, its mild feel and vegan profile are earning it a steady spot in newer launches.

Current safety reviews classify the compound as low risk for irritation or sensitization at the levels used in cosmetics. It carries a very low comedogenic rating which makes it friendly for most skin types including breakout-prone skin. As with any new skincare product, doing a quick patch test before regular use helps catch unexpected sensitivities and keeps your routine running smoothly.

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