Calcium Levofolinate EP Impurity F(Calcium salt) CAS 28459-40-7
Impurities named in a pharmacopoeial monograph are used to check that a chromatographic system resolves and quantifies the species the monograph lists. A laboratory running a related-substances test needs a material whose identity is confirmed and whose assigned content is stated, so that the response it produces can be justified in a validation or in routine batch release. What matters is not the pack size but the documentation behind the material: identity confirmation, the analytical method, the assigned value and the uncertainty the laboratory is expected to carry.
Calcium Levofolinate EP Impurity F(Calcium salt) (CAS 28459-40-7), molecular formula C20H19N7O7 Ca and molecular weight 469.41 40.08. It is also recorded as F-D folic acid; RefChem:437026; N-(10-formyl-7,8-dihydropteroyl)-L-glutamate. Selected pack sizes are held in stock. Tell us the monograph, the method and the quantity you need, and we will confirm availability, the documentation on file and the lead time together.
Part of Pharmacopoeial impurity standards — 134 items in this group.
Also known as
F-D folic acid; RefChem:437026; N-(10-formyl-7,8-dihydropteroyl)-L-glutamate; Calcium Levofolinate EP Impurity F; Calcium folinate hydrate Impurity F [EP Impurity]; CALCIUM FOLINATE IMPURITY F [EP IMPURITY]; Calcium Folinate Hydrate EP Impurity F; Calcium Folinate EP Impurity F(10-Formyldihydrofolic Acid). Further pharmacopoeial and trivial names are recorded on the certificate of analysis.
Chemical identifiers
- InChIKey
- UXFQDXABPXWSTK-ZDUSSCGKSA-N
- SMILES
- C1C(=NC2=C(N1)N=C(NC2=O)N)CN(C=O)C3=CC=C(C=C3)C(=O)N[C@@H](CCC(=O)O)C(=O)O
- PubChem CID
- 135398690
- IUPAC name
- (2S)-2-[[4-[(2-amino-4-oxo-7,8-dihydro-3H-pteridin-6-yl)methyl-formylamino]benzoyl]amino]pentanedioic acid
Identifiers are provided so that this standard can be matched unambiguously against a structure, a database entry or an in-house method file.
Specification
- Catalogue number
- C4X-133519
- CAS number
- 28459-40-7
- Molecular formula
- C20H19N7O7 Ca
- Molecular weight
- 469.41 40.08
- Appearance
- Pale Yellow Solid
- Storage
- -20℃±5℃
- Shipping
- Shipping with Ice Packs
- Country of origin
- China
- Pack sizes
- 25 mg, 50 mg, 100 mg
This is the product specification. Typical purity and assay values are those measured on a released lot and stated on that lot’s certificate of analysis; the certificate for the lot shipped with your order travels with the goods. A specification sheet and a certificate of analysis are different documents and are not interchangeable. The certificate for the current lot opens from the link above.
Pack sizes and lead time
| Pack size | Availability | Quote |
|---|---|---|
| 25 mg | In stock | Request quote |
| 50 mg | In stock | Request quote |
| 100 mg | In stock | Request quote |
What the documents contain
- Certificate of analysis — issued per lot: catalogue and lot number, the value assigned to the material and the analytical basis for it.
- Safety data sheet — supplied for the catalogue item, and the basis for the transport classification used on the shipment.
- Storage and shipping conditions for this item: -20℃±5℃, Shipping with Ice Packs.
Frequently asked questions
Is a certificate of analysis (COA) available for Calcium Levofolinate EP Impurity F(Calcium salt)?
Yes. A batch-specific COA and the MSDS are issued for every lot of Calcium Levofolinate EP Impurity F(Calcium salt) (catalogue number C4X-133519). Use the COA link on this page, or email chao.lu@cato-chem.com with the lot number printed on your label and we will send the matching document.
What pack sizes and lead times are offered?
Pack sizes 25 mg, 50 mg, 100 mg are held in stock and typically ship within 1–2 working days.
How is the purity of Calcium Levofolinate EP Impurity F(Calcium salt) documented?
Purity is determined per batch and stated on the certificate of analysis together with the analytical data used for its assignment. If your method requires a specific grade or a particular pharmacopoeial naming, tell us the requirement when you enquire and we will confirm suitability.
Can you supply a larger quantity or a custom synthesis?
Yes. Quantities above the listed pack sizes are quoted on request, and custom synthesis or isolation from related starting materials can be discussed for compounds not held in stock. Contact chao.lu@cato-chem.com with the target quantity and required delivery date.
How is Calcium Levofolinate EP Impurity F(Calcium salt) shipped?
Shipping conditions for this item: Shipping with Ice Packs. Shipments are packed to maintain the specified storage condition, and the SDS is provided for transport classification.