High-purity Spermidine 98% (CAS: 124-20-9) in liquid form. A natural polyamine widely used in pharmaceutical, nutraceutical, and cosmetic research. Reliable global supplier with COA & MSDS support.

Apigenin (CAS: 520-36-5) is a naturally occurring flavonoid compound commonly found in parsley, chamomile, celery, and other plants. It is a yellow crystalline powder belonging to the flavone subclass of flavonoids and is valued for its stability, safety, and wide range of biological properties.

High-quality Bevirimat (CAS: 174022-42-5) with ≥98% purity, a betulinic acid derivative for pharmaceutical, biotechnology, and research applications. Reliable global supplier with COA, MSDS, and fast delivery.

Discover high-purity Celastrol (Tripterine) CAS 34157-83-0, a natural triterpenoid extract from Tripterygium wilfordii. Widely used in pharmaceutical research, cosmetics, and nutraceuticals. Reliable manufacturer, global supply, COA & MSDS available.

Bruceantin (CAS: 41451-75-6) is a high-purity natural quassinoid extracted from Brucea javanica seeds. With ≥98% purity (HPLC), it is widely applied in pharmaceutical research, nutraceutical development, cosmetic formulations, and phytochemical studies. Nanjing Spring & Autumn Biological Engineering Co., Ltd. provides reliable quality, professional COA support, and worldwide logistics for research and industrial applications.

Naringenin-7-O-glucoside (Prunin, CAS: 529-55-5) is a high-purity natural flavonoid glycoside extracted from citrus fruits. With ≥98% purity (HPLC), it is widely applied in pharmaceutical research, nutraceuticals, cosmetics, and phytochemical studies. Nanjing Spring & Autumn Biological Engineering Co., Ltd. offers consistent quality, professional COA support, and worldwide delivery.

Lathyrol (CAS: 34420-19-4) is a natural diterpene alcohol extracted from Euphorbia lathyris seeds. With a purity of ≥98% (HPLC), it is widely applied in pharmaceutical research, nutraceutical development, cosmetic formulations, and phytochemical studies. Nanjing Spring & Autumn Biological Engineering Co., Ltd. provides consistent quality, professional COA support, and worldwide logistics services for research and industrial customers.

Macranthoidin B (CAS: 136849-88-2) is a high-purity natural steroidal saponin extracted from Lonicera macranthoides (Grey Woolly Honeysuckle). With a molecular weight of 961.10 g/mol and purity ≥98% (HPLC), it is widely recognized as an important plant-derived bioactive compound.

Gracillin (CAS: 19083-00-2) is a high-purity natural steroidal saponin extracted from Dioscorea species. With a purity of ≥98% (HPLC), it is widely applied in pharmaceutical research, nutraceutical development, cosmetics, and phytochemical studies. Nanjing Spring & Autumn Biological Engineering Co., Ltd. provides consistent quality, professional COA support, and global logistics services for research and industrial applications.

Iso-Steviol (CAS 27975-19-5) is a diterpene compound derived from Stevia rebaudiana, produced as a metabolic derivative of steviol glycosides. With ≥98% purity (HPLC verified), Iso-Steviol is widely studied for its metabolic regulation, anti-inflammatory, antioxidant, and potential anti-obesity benefits. It is applied in nutraceutical formulations, functional foods, and cosmetic innovations, and also serves as a key intermediate in stevia research and natural product synthesis.   Purity: ≥98% (HPLC validated) Appearance: White crystalline to off-white powder Key Functions: Metabolic regulation, antioxidant activity, anti-inflammatory potential Applications: Nutraceuticals, functional foods, cosmetic formulations, research chemicals Packaging: 100 g / 1 kg / 5 kg with long-term stability

5-Hydroxy-7-Methoxyflavone (CAS: 520-28-5) is a naturally occurring flavonoid with ≥98% purity verified by HPLC. Known for its anti-inflammatory, antioxidant, and neuroprotective properties, it is widely used in nutraceuticals, functional foods, and cosmetic formulations. Purity: ≥98% (HPLC validated) Appearance: Light yellow crystalline to off-white powder Key Functions: NF-κB inhibition, ROS scavenging, cognitive and cardiovascular support Applications: Dietary supplements, functional beverages, anti-aging skincare products Packaging: 100 g / 1 kg / 5 kg with long-term stability   Nanjing Spring & Autumn Biological Engineering Co., Ltd. provides high-quality flavonoid ingredients with global supply capacity, strict quality control, and professional technical support.

Apigenin Trimethyl Ether (CAS: 5631-70-9) is a naturally derived methoxyflavone with ≥98% purity, validated by HPLC. Known for its anti-inflammatory, antioxidant, and neuroprotective properties, it is widely applied in nutraceuticals, functional foods, and cosmeceuticals. Purity: ≥98% (HPLC verified) Appearance: Yellow to off-white crystalline powder Functions: NF-κB & COX-2 inhibition, ROS reduction, neuroprotection, anti-aging support Applications: Nutritional supplements, fortified beverages, anti-aging skincare formulations Packaging: 100 g / 1 kg / 5 kg with long-term stability under -20°C   Nanjing Spring & Autumn Biological Engineering Co., Ltd. is a trusted manufacturer and global supplier of high-quality flavonoid ingredients. We provide stable supply, competitive pricing, and technical support for research and industrial applications.