(6S)-5-MTHF
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Chemical Name: (6S)-5-Methyl-5,6,7,8-tetrahydrofolic acid, Calcium Salt
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CAS Number: 151533-22-1
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Purity: >99.0% by HPLC (specified for (6S) isomer)
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Stereochemical Purity: >98.0% (6S) isomer by Chiral HPLC
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Appearance: Yellow to orange crystalline powder
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Solubility: Freely soluble in water
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Storage: -20°C, protected from light and moisture
(Powder, Tablets and Capsules)
Premium (6S)-5-MTHF: Guaranteed Stereochemical Purity from SRBio
Experience the SRBio Advantage: Direct Manufacturing, Rigorous Quality Control, and Reliable Global Supply of Active (6S) Folate Isomer
Why (6S)-5-MTHF Matters
(6S)-5-Methyltetrahydrofolate is the biologically active stereoisomer crucial for proper metabolic function. Unlike racemic mixtures, our product ensures:
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Maximum Bioavailability: Natural, active form readily utilized by the body
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Superior Efficacy: Optimal binding to cellular receptors and enzymes
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Enhanced Safety Profile: Free from inactive (6R) isomer that may compete for binding sites
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Regulatory Compliance: Meets stringent requirements for pharmaceutical and nutraceutical applications
The SRBio Supplier Advantage
1. Stereochemical Expertise
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Advanced chiral separation and synthesis technologies
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Rigorous chiral HPLC testing on every batch
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Guaranteed (6S) isomer content >98%
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Expertise in maintaining stereochemical integrity throughout manufacturing
2. Manufacturing Excellence
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cGMP certified facilities with dedicated (6S)-5-MTHF production lines
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Annual capacity of 30+ metric tons
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Patented fermentation and purification processes
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Complete vertical integration from raw materials to finished product
3. Uncompromising Quality Systems
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cGMP, ISO 9001:2015, and FSSC 22000 certifications
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State-of-the-art analytical laboratory with chiral HPLC capabilities
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Comprehensive quality control at every production stage
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Full documentation and batch traceability
4. Reliable Global Supply
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Multiple manufacturing sites with redundant production capabilities
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Strategic raw material partnerships ensuring supply continuity
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≥99% on-time delivery record
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Flexible logistics solutions (FOB, CIF, DAP)
5. Technical Partnership
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Dedicated R&D team for custom solutions
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Application development support
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Regulatory documentation assistance
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Co-development opportunities for specialized applications
Quality Assurance & Compliance
Our Quality Commitment:
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Three-tier quality verification system
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Independent quality assurance department
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Regular third-party auditing and verification
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Comprehensive stability studies (ICH guidelines)
Documentation Provided:
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Certificate of Analysis with chiral purity data
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Comprehensive technical dossier
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Stability study reports
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Regulatory support packages
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Material Safety Data Sheets
Applications & Market Solutions
Pharmaceutical Applications:
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Prescription folate supplements
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Metabolic disorder treatments
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Psychiatric and neurological medications
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Cardiovascular therapeutics
Nutraceutical Applications:
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Premium prenatal vitamins
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Mental health and cognitive support
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Cardiovascular wellness formulas
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General wellness multivitamins
Specialty Applications:
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Medical foods
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Food fortification
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Clinical research materials
SRBio Capability Highlights
Proven Track Record:
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10+ years specializing in folate manufacturing
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Supplying 50+ global companies
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Zero major quality incidents in 5 years
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99.5% customer retention rate
Capacity & Scalability:
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Dedicated (6S)-5-MTHF production lines
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Scalable production from kg to ton quantities
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Flexible batch sizes to match customer needs
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Rapid scale-up capabilities for growing demand
Client Testimonials
*”SRBio’s commitment to stereochemical purity sets them apart. Their (6S)-5-MTHF consistently exceeds our specifications, and their technical support has been invaluable for our pharmaceutical development.”*
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Director of Procurement, European Pharmaceutical Company
“The reliability of SRBio’s supply chain gives us confidence in our production planning. Their consistent quality and competitive pricing have made them our preferred supplier for three consecutive years.”
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VP of Operations, US Nutraceutical Brand
“We appreciate SRBio’s transparency and technical expertise. Their chiral purity data is comprehensive, and they’ve been excellent partners in developing our specialized formulation.”
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R&D Manager, Australian Supplement Company
Frequently Asked Questions
Q: Why is stereochemical purity important in 5-MTHF?
A: Only the (6S) isomer is biologically active. The presence of the (6R) isomer may reduce efficacy and potentially cause unwanted effects. SRBio guarantees >98% (6S) isomer content.
Q: What documentation do you provide for regulatory submissions?
A: We provide comprehensive packages including Certificate of Analysis with chiral purity data, manufacturing process details, stability data, and supporting documentation for FDA, EMA, and other regulatory agencies.
Q: Can you accommodate custom specifications?
A: Yes, we regularly develop custom particle sizes, purity specifications, and packaging solutions to meet specific customer requirements.
Q: What is your lead time for samples and production orders?
A: Samples available within 3-5 business days. Production lead times typically 2-3 weeks, with expedited options available for urgent requirements.
Q: How do you ensure supply chain reliability?
A: Through multiple manufacturing sites, strategic raw material inventory, and established logistics partnerships. We maintain safety stock and provide regular supply chain updates.
Partner with SRBio
Why Choose SRBio as Your (6S)-5-MTHF Partner?
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Guaranteed stereochemical purity and quality
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Reliable, scalable supply chain
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Competitive direct-manufacturer pricing
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Expert technical support and customization
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Comprehensive regulatory documentation
Take the Next Step:
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Receive sample and comprehensive quality documentation
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Discuss your specific requirements with our technical team
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Obtain competitive pricing for your volume needs
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Learn about our customization capabilities
Contact SRBio Today:
Email: admin@plantextractssr.com
Phone: +86-13720408392
Whatsapp/WeChat: +86-13720408392
Company Video
Xi’an SR Bio-Engineering Co., Ltd
Xi’an SRBio is a professional wholesale provider of many quality nutritional supplements products and AMINO ACID Powde etc.
We supply powder, tablets and capsules.

