Hebei Nengqian Chemical Import and Export Co., LTD
Assessed Supplier Enterprise Certification
- Assessed
Supplier - 4th
years
Assessed Supplier Enterprise Certification
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: 86-139-10575315
Tel: +86 15632961819
Tel: +86 18233902561
Tel: +86 15717685612
Tel: +86 16630923639
Tel: +86 18732968538
Tel: +86 18833033983
Tel: +86 19831957301
Mobile: +86 19831957301
Tel: 86-139-10575315
Fax: 4001020630
URL: https://www.nengqianchemical.com/
Province/state: Hebei
City: Handan
Street: Congtai District, La Defense North
MaxCard:
Ms.AnnaCAS NO.157-06-2
food grade(1-50)Metric Ton food grade(50-500)Metric Ton
Food Grade N-Acetyl-DL-tryptophan CAS 87-32-1//L-Serine methyl ester hydrochloride CAS 5680-80-8//CAS 157-06-2 D(-)-Arginine//CAS 98-79-3 L-Pyroglutamic acid
Introduction
| Product name | L-Pyroglutamic acid |
| CAS.No | 98-79-3 |
| MF | C5H7NO3 |
| MW | 129.11 |
| EINECS | 202-700-3 |
Function
L-Pyroglutamic acid is one of the main components of the skin's natural moisturizing factor, and its moisturizing ability far exceeds that of glycerin and glycol. It is non-toxic and non-irritating, and is an excellent raw material for modern skin care and hair care cosmetics. Pyroglutamic acid also has an inhibitory effect on the activity of tyrosine oxidase, thereby preventing the deposition of "melanoid" substances in the skin and has a whitening effect on the skin. It has a softening effect on keratin and can be used in nail cosmetics. In addition to its application in cosmetics, L-pyroglutamic acid can also form derivatives with other organic compounds, and has special effects in terms of surface activity, transparency and brightening effect. It can also be used as a surfactant for detergents; chemical reagents for the resolution of racemic amines; organic intermediates.
Specification
| Item | Specifications | Results |
| Appearance | Off-White crystalline powder | Conforms |
| Specific rotation(a)D20 (C=2,H20) | -10.5°to -11.8° | -11.6° |
| Melting point (°C) | 158°C to 161°C | 159.5°C |
| Chloride (C1) | NMT 0.02% | 0.01% |
| Ammonium (NH4) | NMT 0.02% | <0.02% |
| Sulfate (SO4) | NMT 0.05% | 0.01% |
| Heavy metals (Pb) | NMT 10ppm | 10ppm |
| Iron(Fe) | NMT 20ppm | 8ppm |
| Arsenic (As2O3) | NMT 1ppm | <1ppm |
| Loss on drying | NMT 0.50% | 0.39% |
| Residue on ignition | NMT 0.2% | 0.07% |
| Assay | 98.0-101.0% | 99.30% |
Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,
Our company has a number of sales team, service and information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.
Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization, Keep moving!
Our advantages:
1, High quality with competitive price:
1) Standard:BP/USP/EP/Enterprise standard
2) All Purity≥99%
3) We are manufacturer and can provide high quality products with factory price.
2, Fast and safe delivery
1) Parcel can be sent out in 24 hours after payment.Tracking number available
2) Secure and discreet shipment.Various transportation methods for your choice.
3) Customs pass rate ≥99%
4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe,
and we have stock in there for transferring.
Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,, t/t
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.
FAQ:
1. Are you a trade company or factory
We are a factory with our own trading company.
6. Can i get some samples
Yes, we can supply free sample, but the shipping cost be paid by our customers.
7. How to start orders or make payments
Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,
8. How to confirm the Product Quality before placing orders
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
9. How long is lead time
We deliver goods within 3 days for small order, 7-10 days for bulk order.
10. How do you treat quality complaint
First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.