Phenylbenzimidazole Sulfonic Acid Water-soluble Sunscreen Agent 27503-81-7 PBSA
Product Introduction:
Phenylbenzimidazole Sulfonic Acid is a commonly used water-soluble sunscreen agent.It is a sulfonated UV absorber that can strongly absorb UVB and partially absorb UVA. By absorbing ultraviolet energy and converting it into harmless heat energy, it protects the skin from ultraviolet damage.It is mainly used in cosmetics, such as face creams, lotions, sunscreen creams, etc. It can be used as a water-phase UV-B absorber. When added to the water phase, it can increase the SPF value of the product.
Chemical Name: 2-phenyl-1H-benzimidazole-5-sulfonic acid
INCI Name: Phenylbenzimidazole Sulfonic Acid
INN Name: Ensulizole
CAS No.: 27503-81-7
Structure:
Formula: C15 H12O3S
Mol. Weight: 272.32
Packing: 20kg /drum
Storage: Stored at room temperature in a sealed container
Retest period: 1 year
Advantage:
• Efficient UVB absorber
• Exhibits outstanding photostability, significantly enhancing SPF
• Suitable for aqueous transparent sun protection products, such as gels or clear sprays, and can also be formulated into water-resistant sunscreens
Max concentration:
4% (US, CA, AUS, KR), 8% (EU, CN), 3% (JP)
Technical data:
| Test items | Limits | Test method |
| Description | White to off-white powder | Visual inspection |
| Identification | HPLC: The retention time of the major peak in the chromatogram of the sample corresponds to that of the standard as obtained in purity. | HPLC |
| | UV: The sample solution exhibits absorption maximum between 300 and 304 nm | UV |
| Water | ≤2.0% | KF |
| UV absorptio n coefficient | E302nm(10mg/L,1cm)920～990 | UV |
| Heavy metal | ≤20ppm | Color comparison |
| Assay | 98.0～102.0% | Titration |
| Purity | ≥98.0% | HPLC |
UV absorption spectrum:
Company Profile:
Slinmeng (Guangzhou) New Materials Co., Ltd., headquartered in Guangzhou, China, is a provider of fine chemical solutions that integrates high-end customized production and global trade. The founding team has over 20 years of extensive experience in the fine chemical industry. With rich industry expertise, we have consolidated high-quality supply chain resources from various sectors to build a strong and stable supplier network, committed to providing customers with reliable supply assurance and highly competitive products.
Slinmeng has a production workshop covering an area of over 8,000㎡ and 5,000 ㎡ standardized specialized warehouse for fine chemical raw materials.
FAQ:
1.Are you a factory or trading company?
We are a company integrating production and trade.No matter the products we manufacture or trade, high qualityproducts and competitive price always will be provided for you.
2.Do you provide free samples?
Yes, we can offer free sample 100-200g , you just need to pay the freight .
3.What is your MOQ?
It depends on what you need. For most of our products, we offer flexible minimum order quantities, please contact us about specific details .
4. Is there a discount?
Discounts are based on the quantity you order, the largerthe quantity, the lower the price we can offer.
5.How long is your delivery time ?
Usually it takes about 5-10 days (for regular products) . If the quantity is large, the delivery time may be longer, depending on the actual delivery date of the factory.
6.Do you test all your goods before delivery ?
Yes, we have 100% test before delivery, and provide COA together .
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