Vitamin U API is a niche but valuable raw material for companies developing digestive health, gastric care, and gastrointestinal support formulations. Although it is commonly called “Vitamin U,” it is not a classical vitamin. It is generally known as methylmethionine sulfonium chloride or S-methylmethionine chloride, a methionine-derived compound associated with gastric mucosal support and digestive wellness applications.
For pharmaceutical manufacturers, supplement brands, formulation developers, and ingredient distributors, Vitamin U offers an interesting balance: it is a specialized product with clear application positioning, but still requires strong quality control, stable supply, and reliable documentation.
Huzhou Ureda Pharmaceutical Co., Ltd. supplies Vitamin U API with GMP and DMF support, helping global customers evaluate this ingredient for R&D, formulation development, and commercial sourcing.
Why Vitamin U Attracts Formulation Interest
In today’s digestive health market, customers are not only looking for common antacids or probiotics. Many companies are exploring targeted ingredients that can support gastric comfort, mucosal protection, and overall gastrointestinal wellness.
Vitamin U fits this trend because it is closely associated with:
- Digestive health formulations
- Gastric care products
- Gastrointestinal support ingredients
- Functional health products
- Specialized pharmaceutical or nutraceutical development
- Formulations inspired by cabbage-derived digestive support compounds
This makes Vitamin U a useful ingredient for customers looking to differentiate their product portfolio in the digestive health category.
Product Identity
| Item | Information |
|---|---|
| Product Name | Vitamin U |
| Common Name | Methylmethionine Sulfonium Chloride |
| Alternative Name | S-Methylmethionine Chloride |
| Molecular Formula | C6H14ClNO2S |
| Molecular Weight | 199.70 |
| Product Category | Digestive health API / Specialty ingredient |
| Documentation | GMP / DMF available |
| Typical Packing | 20 kg/drum |
| Application | Digestive health and gastric care formulations |
Vitamin U is hygroscopic and may be sensitive to light, heat, and moisture. Proper packaging, storage, and handling are therefore important for maintaining product quality.
A Practical Ingredient for Digestive Health Product Development
Vitamin U may be considered by customers working on:
- Gastric comfort formulations
- Digestive health tablets or capsules
- Gastrointestinal support products
- Functional nutrition products
- Specialty pharmaceutical formulations
- Ingredient portfolio expansion for digestive care
For sourcing teams, Vitamin U is not usually a high-volume commodity ingredient. It is more often evaluated as a specialty raw material where quality data, documentation, and supplier reliability are more important than price alone.
GMP and DMF Support for Vitamin U
For international buyers, documentation is often a key factor when selecting a Vitamin U supplier. Depending on customer requirements and project status, Vitamin U can be supported with:
- GMP documentation
- DMF support
- COA
- Specification
- MSDS
- Technical document support
- Packaging and storage information
This is especially useful for customers preparing supplier qualification, product registration, formulation review, or long-term sourcing evaluation.
Quality Profile of Vitamin U API
A recent Vitamin U batch was tested according to WS-10001-(HD-0674)-2002. The quality profile shows good compliance with the required standard.
| Test Item | Requirement | Result |
|---|---|---|
| Appearance | White crystalline powder with special smell | Complies |
| Melting Point | 134–137°C, with decomposition | 135°C, with decomposition |
| Identification | Chemical reaction tests | Complies |
| Loss on Drying | ≤3.0% | 0.6% |
| Residue on Ignition | ≤0.2% | 0.1% |
| Heavy Metals | ≤20 ppm | <20 ppm |
| Bacterial Count | ≤1000 cfu/g | <10 cfu/g |
| Yeast and Mold Count | ≤100 cfu/g | <10 cfu/g |
| E. coli | Not detected | Not detected |
| Assay | ≥98.0% | 98.9% |
The results indicate that the material meets the required quality standard, with assay at 98.9%, low microbial count, and controlled heavy metals.
What Buyers Should Check Before Purchasing Vitamin U
When evaluating Vitamin U API, buyers should pay attention to practical quality and supply factors:
Product Identification
Vitamin U may be listed under different names, including methylmethionine sulfonium chloride and S-methylmethionine chloride. Buyers should confirm the exact product identity, CAS number, specification, and intended application before purchase.
Moisture Sensitivity
Vitamin U can be moisture-sensitive. Buyers should confirm packaging type, storage condition, shelf life, and whether the product is suitable for their production environment.
Assay and Microbial Control
For digestive health and pharmaceutical applications, assay and microbial limits are important quality indicators. A reliable supplier should provide batch-specific COA.
Documentation
For regulated or semi-regulated markets, GMP and DMF support may help customers with supplier approval, technical review, and registration preparation.
Why Work with Ureda Pharma for Vitamin U API?
Huzhou Ureda Pharmaceutical Co., Ltd. supports global customers with APIs, pharmaceutical raw materials, and specialty ingredients. For Vitamin U API, we focus on practical sourcing support rather than only product listing.
We can support:
- Vitamin U API supply
- GMP and DMF documentation support
- COA and specification
- Sample and bulk inquiry
- Export documentation
- Technical communication
- Flexible sourcing for pharmaceutical and health product customers
Whether you are evaluating Vitamin U for a new digestive health formulation or looking for a stable supplier for commercial sourcing, our team can help check availability and provide quotation support.
Product Summary
| Product | Category | Documents | Application |
|---|---|---|---|
| Vitamin U API | Digestive health API / Specialty ingredient | GMP / DMF available | Gastric care and digestive health formulations |
Contact Us for Vitamin U API
If you are looking for Vitamin U API with GMP and DMF support, please contact us for availability, specification, COA, and quotation.
Huzhou Ureda Pharmaceutical Co., Ltd.
Contact: Owen Lee
Email: sales@uredapharm.com
Website: www.uredapharm.com
WhatsApp: +86-18270717590
FAQ
What is Vitamin U API?
Vitamin U API is commonly known as methylmethionine sulfonium chloride or S-methylmethionine chloride. It is used in digestive health and gastric care formulations.
Is Vitamin U a real vitamin?
Although it is called Vitamin U, it is not a classical vitamin. It is generally regarded as a methionine-derived compound.
What is Vitamin U used for?
Vitamin U is mainly associated with digestive health, gastric care, and gastrointestinal support formulations.
Is GMP documentation available for Vitamin U?
Yes. GMP support is available for Vitamin U API.
Is DMF support available for Vitamin U?
Yes. DMF support is available depending on customer requirements and project evaluation.
What documents can be provided?
Available documents may include COA, specification, MSDS, GMP-related documents, DMF support, and technical documents upon request.
