Molekula
L-(+)-Amethopterin hydrate (Methotrexate) - USP CRS
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Certificate of Analysis with every batch
L-(+)-Amethopterin hydrate, also known as Methotrexate USP CRS, is a potent chemotherapeutic agent and immunosuppressant used primarily in cancer treatment, autoimmune disease management, and ectopic pregnancy termination. It is a synthetic folate antagonist that inhibits dihydrofolate reductase, disrupting DNA synthesis in rapidly dividing cells. This chemical has a CAS number of 59-05-2, a molecular formula of C20H22N8O5, and a molecular weight of 454.44. It requires strict storage at -15 to -20°C and carries a **Danger** signal word due to its high toxicity. Molekula supplies L-(+)-Amethopterin hydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
L-(+)-Amethopterin hydrate, also known as Methotrexate USP CRS, is a potent chemotherapeutic agent and immunosuppressant used primarily in cancer treatment, autoimmune disease management, and ectopic pregnancy termination. It is a synthetic folate antagonist that inhibits dihydrofolate reductase, disrupting DNA synthesis in rapidly dividing cells. This chemical has a CAS number of 59-05-2, a molecular formula of C20H22N8O5, and a molecular weight of 454.44. It requires strict storage at -15 to -20°C and carries a **Danger** signal word due to its high toxicity. Molekula supplies L-(+)-Amethopterin hydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | Undamaged packaging |
| Identification | Conforms to USP monograph |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90038250 |
| CAS Number | 59-05-2 |
| Molecular Formula | C20H22N8O5 |
| Molecular Weight | 454.44 |
| SMILES | O=C(O)CCC(NC(=O)C1=CC=C(C=C1)N(C)CC=2N=C3C(=NC2)N=C(N=C3N)N)C(=O)O |
| EC / UN Number | 1544 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
-
Toxic
GHS06
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H301 Toxic if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H340 May cause genetic defects
- H360 May damage fertility or the unborn child
Precautionary statements
- P201 Obtain special instructions before use
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is L-(+)-Amethopterin hydrate (Methotrexate) USP CRS used for?
It is primarily used as a chemotherapy medication to treat cancer (e.g., leukemia, lymphoma) and as an immunosuppressiveant for autoimmune diseases like rheumatoid arthritis and psoriasis.
What is the chemical formula and molecular weight of Methotrexate USP CRS?
The chemical formula is **C₂₀H₂₂N₈O₅**, and the molecular weight is **454.44 g/mol**.
How should Methotrexate USP CRS be stored?
Store at **-15 to -20°C** to maintain stability and potency. Avoid exposure to light and moisture.
What grade of Methotrexate USP CRS does Molekula supply?
Molekula supplies **USP CRS (United States Pharmacopeia Chemical Reference Substance) grade**, meeting stringent purity and quality standards for pharmaceutical applications.
Can Molekula supply Methotrexate USP CRS in bulk quantities?
Yes, bulk quantities are available upon request, subject to regulatory compliance and customer requirements.
What documentation comes with an order of Methotrexate USP CRS?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** to verify compliance with USP CRS standards.
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