50-81-7 Vital C Ascorbic Acid The Ordinary L Ascorbic Powder BP USP

Basic Information
Place of Origin: CHINA
Brand Name: XINLEI
Certification: ISO/KOSHER/HALAL
Minimum Order Quantity: 1000kg
Price: USD0~0
Packaging Details: 25kg/carton
Delivery Time: 5-8work days
Payment Terms: L/C, T/T
Supply Ability: 500TON PER MONTH
Detail Information
Molecular Weight:: 176.13 Molecular Formula:: C6H8O6
Quality Standard:: BP/USP Packing:: 25kg Net Craft Paper Bag With Double PE Bag Inner
Shelf Life:: 24 Months Identification: Positive
Clarity Of Solution: Clear Assay (%): 99.0~100.5
Melting Point ( ℃): About 190 CAS No.: 50-81-7
High Light:

50-81-7 vital c ascorbic acid


USP the ordinary l ascorbic powder


USP vital c ascorbic acid

Product Description

Biochem/physiol Actions

L-Ascorbic acid (L-AA) is a widely available and water-soluble compound. L-AA has an ability to inhibit the corrosion of mild steel.

Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates.


Ascorbic acid functions as an enzymatic cofactor for multiple enzymes, serving as an electron donor for monooxygenases and dioxygenases. Ascorbic acid also functions as a powerful antioxidant, particularly in regards to reactive oxygen species.






White crystalline powder



Clarity of solution


Assay (%)


Loss on drying (%)

≤ 0.40

Residue on ignition (%)

≤ 0.10

Sulphate ash

≤ 0.10

Specific rotation

from +20.5 to +21.5

PH value (2% solution)

2.4 ~ 2.8

PH value (5% solution)

2.1 ~ 2.6

Heavy metals

≤3 ppm


≤2 ppm


≤2 ppm

Total plate count

≤ 1000 cfu/g


≤1 ppm


≤1 ppm

Organic volatile impurities

Meets the requirements

Chloride (Cl) (%)

≤ 0.30

Melting point ( ℃)

about 190


≤1 ppm


≤2 ppm



Yixing Jiangshan Bio-tech Co.,Ltd was founded in 1992. And it is situated in Yixing City of China. Yixing city enjoys the reputation as Oriental Water City and hometown of purple clay teapot. 160km from Shanghai, 160km from Nanjing, 160km from Hangzhou, 60km from Wuxi, with convenient transportation.


We covers an area of 170 acres, has a number of large-scale modern production line workshop, our four main products series are feed additives series, food additives series, bio-chemicals and OEM. We are capable of producing 4000 tons L-Ascorbate-2-Phosphate 35%, 2000 tons vitamin C coated, 3000 tons vitamin C granule, 2000tons calcium/sodium ascorbate, sodium ascorbate granule, calcium ascorbate granule, 4000 tons polyether antifoamer, 2000tons yeast extract, yeast powder, yeast cell wall, yeast hydrolysate, etc.



We have passed the ISO9001:2000 Quality System Certification, FAMI-QS System Certification, OU Kosher Certification, HALAL Certification and HACCP. According to GMP+ standard management, our products meet the requirements of international and domestic quality standards. Company has won the AAA grade credit enterprise, top hundred enterprise in chemical, private scientific and technological enterprises in Jiangsu Province, insisting on the quality policy of “QUALTIY FIRSST, INTEGRITY TOP”, we will offer the customers high-quality products and services.




Q: How long have you run on export trade?

A: 30 years focus on the food additivs and Vitamins, also some Fine Chemicals and API.


Q: What's your payment terms?
A: We accept all payment TT,LC,DP,Paypal. But for first time, we only do LC or TT.


Q: What's your delivery time?
A: Usually we will arrange the shipment in 7 -15 days.

Q: How about the packing?
A: Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.

Q: How about the validity of the products?
A: We ensure that the cargoes have 80% shelf life when it delivery.

Contact Details