Rosemary Essential Oil

Rosemary Essential Oil (CAS 8000-25-9, INCI name -distilled essential oil standardized to borneol 8%, esters >1.5%, distilled from Rosmarinus officinalis leaves. Baisifu supplies food-grade, BP/USP and Ph.Eur. equivalent batches from a Xi’an facility, with every drum shipped with a COA, allergen declaration and IFRA documentation.

Botanical identity and chemistry

Rosemary Essential Oil is the steam-distilled volatile oil obtained from the fresh flowering tops and leaves of Rosmarinus officinalis L. (syn. Salvia rosmarinus), an evergreen shrub of the Lamiaceae family native to the Mediterranean and widely cultivated in China. The oil is chemically diverse, with three principal chemotypes, 1,8-cineole, camphor and verbenone, distinguished by their dominant marker; the grade Baisifu supplies carries a borneol-anchored profile with a minimum 8 percent borneol and esters above 1.5 percent, placing it in the broadly pharmacopoeial rosemary oil tradition.

Distillation and standardisation

Flowering tops are harvested, lightly wilted and charged to stainless-steel stills for steam distillation at atmospheric pressure. The crude oil is decanted, dried and standardised in-house by GC-MS against pharmacopoeial reference markers; the borneol floor is set at 8 percent and the total ester content above 1.5 percent, with 1,8-cineole, alpha-pinene and camphor recorded as secondary markers. Baisifu does not blend chemotypes; each drum is single-botanical-source R. officinalis oil.

Active profile by GC-MS

Beyond the borneol anchor, the GC-MS fingerprint carries a reproducible secondary cast of 1,8-cineole, alpha-pinene, camphor, verbenone, bornyl acetate and beta-caryophyllene. Baisifu records the full chromatogram on each COA; the borneol-to-camphor ratio and the verbenone level are the metrics that distinguish this chemotype from the high-cineole and high-camphor grades, and both are printed on every COA so buyers can confirm the profile.

Physical and sensory behaviour

The oil is a clear, mobile, colourless to pale-yellow liquid with a density near 0.91 g/cm3, a refractive index around 1.468 at 20 degrees Celsius and a boiling point in the 160 to 200 degree range. Its odour is a strong, fresh, herbaceous-minty, slightly camphoraceous top-to-body note with a woody dry-down; in perfumery it blends with citrus, herbaceous, woody and spice materials and is a classic component of cologne, masculine and functional fragrance compositions.

Typical applications

Rosemary Essential Oil enters the following formulation workflows:

• fine fragrance and functional perfumery
• hair-care and scalp products
• household surface cleaners
• pharmaceutical rubs and balms
• aromatherapy and wellness blends
• culinary and savoury flavours

Formulation and blending notes

The oil is miscible with ethanol and fixed oils and soluble in propylene glycol at typical use levels. Rosemary has no significant phototoxicity and carries a relatively wide IFRA margin, which makes it a preferred material for leave-on skin and hair formats. The camphor and 1,8-cineole content should be considered in products intended for young children; the verbenone level is monitored for buyers specifying the verbenone chemotype.

COA and batch documentation

Each drum ships with a Certificate of Analysis carrying the GC-MS chromatogram, borneol and ester assay, 1,8-cineole and camphor flag, specific gravity, refractive index, heavy metals (Pb, As, Cd, Hg) and pesticide residue screen. An allergen declaration, an IFRA conformity statement and a Statement of Origin complete the pack, giving QC and regulatory teams a single-shipment document set.

Regulatory and compliance

Rosemary oil is generally recognised as safe in food applications and is permitted in flavour and fragrance applications under the IFRA Code of Practice with a relatively wide margin. Under EU CLP the concentrated oil is classified as hazardous (flammable liquid category 3, aspiration toxicant category 1, skin sensitiser category 1), so Hazmat labelling and UN 1993 shipping names apply for bulk movement.

Packaging, storage and supply

Rosemary Essential Oil is filled into 180 kg HDPE drums or 50 kg sample drums, nitrogen-blanketed and sealed under COA. Store in a cool, dry place away from direct sunlight; the recommended storage temperature is 15 to 25 degrees Celsius with a shelf life of 24 months from manufacture in original sealed packaging. Baisifu ships ex-Xi’an, MOQ 50 kg for sample development and 1,000 kg and above for production orders; standard lead time 7 to 15 days depending on batch availability, with express air freight on request.

Questions buyers ask

Which chemotype is this?

The grade Baisifu supplies carries a borneol-anchored profile (minimum 8 percent borneol, esters above 1.5 percent), placing it in the broadly pharmacopoeial rosemary oil tradition; the borneol-to-camphor ratio and the verbenone level on the COA distinguish it from the high-cineole and high-camphor chemotypes.

What borneol level can you guarantee?

The standardised grade is assayed by GC-MS to a minimum of 8 percent borneol and above 1.5 percent total esters against pharmacopoeial reference markers; the exact figures and the full secondary fingerprint are printed on the COA of every drum.

Can you supply a specific chemotype on request?

The default grade is the borneol-anchored profile; if a high-1,8-cineole, high-camphor or verbenone chemotype is required, state the target marker and we will advise availability and specification before you commit.

Need specifications, COA, or a wholesale quote? Contact Baisifu — typical response within 24 hours.