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Top quality Calcium folinate with best price 1492-18-8
1-1000 Gram
$12.00
≥ 1001 Gram
$1.50
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If over 500pcs, mass production will start until pre-production sample has been approved.
Est. 7 days production
| product Name | Calcium folinatc |
|---|---|
| Synonyms | Folinic acid Calcium salt; calcium folinate; Folinic acid calcium salt USP28; Calcium leucovorin; LeucovorinCalcium; CALCIUM FOLINATE(FOLINIC ACID)(RG); Leucovorin Calcium; calcium2-[4-[(2-amino-5-formyl-4-oxo-1,6,7,8-tetrahydropteridin-6-yl)methylamino]benzoyl] aminopentanedioate; L-Calcium Folinate; Calcium L-Folinate; calcium (2S)-2-[(4-{[(2-amino-5-formyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl)methyl]amino}benzoyl)amino]pentanedioate; calcium (2S)-2-({[4-({[(6S)-2-amino-5-formyl-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl]methyl}amino)phenyl]carbonyl}amino)pentanedioate |
| Molecular Formula | C20H21CaN7O7 |
| Molecular Weight | 511.5014 |
| CAS Registry Number | 1492-18-8 |
| EINECS | 216-082-8 |
| Molecular Structure | |
| Hazard Symbols | |
| Risk Codes | R36/37/38:; R42/43:; |
| Safety Description | S26:; S36:; |
| Item | spectification | Results |
| Appearance | yellowish-white oryellow,ordorless powder | conforms |
| identification | IR conforms | conforms |
| solubility | Very soluble in water0.92%g/ml practically insoluble in alcohol | |
| heavy metals | NMT0.005% | <0.005% |
| water content | NMT17.0% | 10.4% |
| assay of Ca | 7.54%-8.14% | 7.62% |
| Assay | 95.0%-105.0% of C20H21CaN7O7 Calculated on the anhydrous basis | 99.3% |
While not specifically an antidote for methotrexate, folinic acid may also be useful in the treatment of acute methotrexate overdose. Different dosing protocols are used, but folinic acid should be redosed until the methotrexate level is less than 5 x 10−8 M.
Additionally, folinic acid is sometimes used to reduce the side effects of methotrexate in rheumatoid arthritispatients. This includes reductions in nausea, abdominal pain, abnormal liver blood tests, and mouth sores.
Folinic acid is also used in combination with the chemotherapy agent 5-fluorouracil in treating colon cancer. In this case, folinic acid is not used for "rescue" purposes; rather, it enhances the effect of 5-fluorouracil by inhibiting thymidylate synthase.
Folinic acid is also sometimes used to prevent toxic effects of high doses of antimicrobial dihydrofolate reductase inhibitors such as trimethoprim and pyrimethamine. It may be prescribed in the treatment oftoxoplasmosis retinitis, in combination with the folic acid antagonists pyrimethamine and sulfadiazine.
Folinic acid has dextro- and levorotary isomers, only the latter one being pharmacologically useful. As such, levoleucovorin was approved in 2008.
It has been investigated for use in Down syndrome, but a benefit has not been demonstrated.
Qingdao Sigma chemical Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of Qingdao Sigma chemical Co., Ltd is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
Answer: Yes, we are factory founded on 2002.
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Q4:Can you give me a discount price?
Surely,It depend on your qty
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: How to confirm the Product Quality before placing orders?
A: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.
Q7:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
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