Basic Info.
Environmental Protection
Yes
Package
Foil Pouch/Paper Drum
Transport Package
as Request
Product Description
Product Name:L-Cysteine
CAS:52-90-4
MF:C3H7NO2S
MW:121.16
EINECS:200-158-2
Mol File:52-90-4.mol
Melting point:220 °C (dec.)(lit.)
alpha 8.75 º (c=12, 2N HCl)
Boiling point:293.9±35.0 °C(Predicted)
Density 1.197 (estimate)
FEMA 3263 | L-CYSTEINE
refractive index 8.8 ° (C=8, 1mol/L HCl)
storage temp. Store at RT.
solubility H2O: 25 mg/mL
pka1.92(at 25ºC)
form Solid
color White
PH4.5-5.5 (100g/l, H2O, 20ºC)
optical activityOptical rotation: +8° to +9° (c = 5, 1 N HCl, 20°C).
Water Solubility 280 g/L (25 ºC)
Description
1:L-cysteine can be used as bread improver, nutritional supplements, antioxidants and color fixative. :2:L-cysteine can be used for the treatment of eczema, urticaria, freckles and other skin diseases. 3:L-cysteine can be used for biochemical research and as the antidote for hepatitis, 4:L-cysteine is mainly used for medicine, cosmetics, biochemical research and so on. 5:L-cysteine can be used as the receptor agonists of NMDA glutamate
GuangZhou TongYi biochemistry technology Co., Ltd is a company specializing in active pharmaceutical ingredient
(API), biology, plant extracts, chemical raw materials, fine chemicals, pharmaceutical intermediates, cosmetics raw
material. Our company has always adhered to the company phi
osophy of integrity, professionalism, quality first, and
customer service. With the efforts of all the company's employees, it has established long-term
and stable cooperative relations with many domestic and foreign customers, and won the unanimous trust of domestic
and foreign customers. With good comments, our company have made great progress.
Our company takes pioneering and innovative, high-quality and efficient as the code of conduct, and strives to provide
customers with efficient services,
high-quality products, and reasonable prices. We have established a customer demand-oriented, flexible, diverse and customizable service according to the different needs of different customers. Mode, and ultimately achieve the goal of
win-win.
Our company focuses on the future and the world, and will continue to devote itself to technological progress and the
development of new products in the future, hoping to work hand in hand with new and old friends at home and abroad
to create a better future.
Product Parameters
Company Profile
Hubei Marvel Biopharmaceutical Co., Ltd. is located in Wuhan, Hubei Province, which is a water, land, and air transportation hub. It is a company dedicated to the development and sales of fine chemicals, pesticide raw materials, and other products.
The company is committed to developing into a powerful brand company with independent import and export management rights. Its innovative and breakthrough products not only make Marvel Pharmaceutical a leader in the industry domestically, but also enjoy a high reputation internationally. Always adhere to the business philosophy of "customer satisfaction and enterprise development", build a bridge with customers with the spirit of integrity and dedication, and serve customers better, faster, and more accurately.
The company has independent import and export management rights and an excellent sales team. With the diligent efforts of all employees, we have opened up a vast market for the company. The company's products sell well throughout the country and are exported to countries and regions such as Europe, America, Southeast Asia, and Africa. The number of customers served each year is over 2000, winning unanimous recognition and praise from our customers.
Certifications
FAQ
Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.
Q2: Which payment is available for your company?
Re: T/T, L/C or Alibaba trade insurance. You can choose the one which is convenient for you.
Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)
or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on
where the port is.
Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.
Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.
Our Advantages
Advantages:
1. Faster delivery: Sample order in stock and 3-7 days for bulk production.
2. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
3. After-Sale Service:
1)International Authorized Third-Party Test For The Products You Demand.
2)60 Days Warranty of quality of goods.
Make an order | Please make clear what product and what quantity you need |
Quote | Prices and Specifications details would be offered for you to consider and confirm |
Payment ways | Bank Transfer, Western Union, Money Gram and Bitcoin |
Delivery ways | All Express Modes(EMS, DHL, TNT, FedEx, UPS, etc.) |
Shipping address | Provide your Valid and Correct destination address info(if possible with post code, phone number). |
Packing | Select best ways according to quantity and safety degree(Super discreet, professional and experienced) |
Lead time | Within 8 hours upon receipt of payment |
Package picture | Photos of package would be offered to tell apart the items |
Tracking number | Offered once it is released |
Shipping time | 3-7 working days (Door-to-Door) |
After-sale service | 24/7 Online for any problems |
Address:
Guanshan Village, Wuhan, Hubei, China
Business Type:
Trading Company
Business Range:
Chemicals, Health & Medicine
Company Introduction:
Hubei Marvel Biopharmaceutical Co., Ltd. is located in Wuhan, Hubei Province, which is a water, land, and air transportation hub. It is a company dedicated to the development and sales of fine chemicals, pesticide raw materials, and other products.
The company is committed to developing into a powerful brand company with independent import and export management rights. Its innovative and breakthrough products not only make Marvel Pharmaceutical a leader in the industry domestically, but also enjoy a high reputation internationally. Always adhere to the business philosophy of "customer satisfaction and enterprise development", build a bridge with customers with the spirit of integrity and dedication, and serve customers better, faster, and more accurately.
The company has independent import and export management rights and an excellent sales team. With the diligent efforts of all employees, we have opened up a vast market for the company. The company′s products sell well throughout the country and are exported to countries and regions such as Europe, America, Southeast Asia, and Africa. The number of customers served each year is over 2000, winning unanimous recognition and praise from our customers.