Complaint
Ascorbic Acid / Vitamin C
Chemical name: Ascorbic Acid
Alias: Vitamin C
CAS.: 50-81-7
EINECS No.:200-066-2
Chemical Formula:C6H8O6
Appearance: White or almost White crystals Crystalline Powder
Vitamin C is a polyhydroxy compound with the chemical formula C6H8O6. The structure is similar to glucose, and the two adjacent enol hydroxyl groups at the 2nd and 3rd positions in the molecule are easily dissociated and release H+, so it has acid properties, also known as L-ascorbic acid. Vitamin C has strong reducing properties and is easily oxidized to dehydrovitamin C, but its reaction is reversible, and ascorbic acid and dehydroascorbic acid have the same physiological functions, but if dehydroascorbic acid continues to oxidize, diketocorbic acid is formed. Lonic acid reacts irreversibly and completely loses its physiological efficacy.
Application:
In the human body, vitamin C is a highly effective antioxidant, used to reduce the oxidative stress of ascorbate peroxidase (ascorbate peroxidase) sch. There are many important biosynthetic processes that also require the participation of vitamin C.
1. Promote the formation of antibodies. The high concentration of vitamin C helps reduce the cystine in food protein to cysteine, thereby synthesizing antibodies.
2. Promote the absorption of iron. Vitamin C can reduce the hard-to-absorb trivalent iron to the easily absorbed divalent iron, thereby promoting the absorption of iron. In addition, it can also make the sulfhydryl group of ferrous complex enzyme in an active state, so as to effectively play a role, so vitamin C is an important auxiliary drug for the treatment of anemia.
3. Promote the formation of tetrahydrofolate. Vitamin C can promote the reduction of folic acid to tetrahydrofolate, so it has a certain effect on megaloblastic anemia.
4. Maintain the activity of sulfhydrylase.
5. Detoxification. After supplementing a large amount of vitamin C in the body, it can alleviate the toxic effects of heavy metals such as lead, mercury, cadmium, and arsenic on the body.
6. Prevent cancer. Many studies have shown that vitamin C can block the synthesis of carcinogen N-nitroso compounds and prevent cancer.
7. Scavenging free radicals. Vitamin C can be converted into semi-dehydroascorbic acid and dehydroascorbic acid through the step-by-step supply of electrons to remove super-negative oxygen ions (O2-), hydroxyl radicals (OH-), organic free radicals (R-) and organic peroxides in the body. Oxygen (ROO-) and other free radicals; re-reducing tocopherol free radicals to tocopherol, and the ascorbic acid free radicals generated by the reaction can be reduced to ascorbic acid under certain conditions by the system enzymes of NADH2.
8. Vitamin C is the formation of antibodies and collagen, tissue repair (including some redox effects), the metabolism of phenylalanine, tyrosine, and folic acid, the utilization of iron and carbohydrates, the synthesis of fat and protein, and the maintenance of immune function , Hydroxylated serotonin is necessary to maintain the integrity of blood vessels and promote the absorption of non-heme iron. At the same time, vitamin C also has anti-oxidation, anti-free radicals, and inhibits the formation of tyrosinase, so as to achieve whitening and lightening of spots. effect.
| Item | Standard | Result |
| Appearance | White powder | PASS |
| Identification | Positive reaction | Positive |
| Melting Point | About 190ºC | 191.1ºC |
| PH | 2.1-2.6 | 2.42 |
| Clarity of solution | Clear | Pass |
| Color of solution | ≤BY7 | <BY7 |
| Copper | ≤5ppm | <5ppm |
| Heavy metals | ≤10ppm | <10ppm |
| Mercury | <0.1mg/kg | <0.1mg/kg |
| Lead | <2mg/kg | <2mg/kg |
| Arsenic | ≤3ppm | <3ppm |
| Cadmium(Cd) | <1mg/kg | <1mg/kg |
| Oxalic acid | ≤0.2% | <0.2% |
| Iron | ≤2ppm | <2ppm |
| Loss of Drying | ≤0.4% | <0.4% |
| Sulphated Ashes | ≤0.1% | 0.03% |
| Specific optical Rotation | +20.5°~ +21.5° | +21.05° |
| Mesh | 40-80Mesh | Pass |
| Organic volatile impurities | Pass | Pass |
| Assay | 99.0%-100.5% | 99.81% |
| Residual solvents | Methanol: NMT 3000ppm | <3000ppm |
Shipping:by sea or by air or express
SINOBIO cooperate with different shipping company to help customer arrange the shipping for different quantity.
Payment:T/T,western union,moneygram or as your requirement
Dalian Sinobio Chemistry Co.,Ltd_was established in 2011 and located in beautiful costal city Dailan Liaoning Province. we can enjoy convenient transportation by all logistic ways. Sinobio cooperated with Dalian university of technology, who has 2 production sites: one located in Lanzhou city , Gan Su province who mainly produce biocides and pharmaceutical related. Another located in Fuzhou city,Jiangxi province .It was founded in 2013 with abundant financial resources.
As a professional agrochemical and it's intermediates products' supplier, they have excellent teams who focus on product development & design, quality control & inspection and company running. In order to supply the qualified products and services, we have built a modern quality management system which is in strict accordance with international standards. Our factory has got ISO9001&ISO14001 certificates.
Adhering to the business principle of mutual benefits, we have had a good reputation among our customers because of our perfect services, quality products and competitive prices. We warmly welcome customers from at home and abroad to cooperate with us for common success.
Q1: Can I get samples?
A: Yes, we can supply free sample, you pay for the freight charge only.
Q2: How to pay?
A: PI will be sent firstly after our aligned products specification. Payment by Paypal , T/T, Western Union,LC, Alipay are ok
Q3: How is your MOQ?
A: Normally speaking, our MOQ is 1kg. But we can also accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q4: How can you guarantee the quality of your products?
1. Our staff are all experienced in chemical products or related major background, they are well trained before quotation.
2. Free sample or pre- shipment sample are available for our new cooperation before you place commercial order. We are sure the same specification commercial products as sample to customers
3. Third Party Inspection like SGS can be arranged according to your requirement before shipping.
4. On-Spot QC in our APPROVED associated production bases with necessary certification like GMP, ISO etc.
