Selecting Vitamin C for Pharmaceutical Intermediates & APIs: mechanism, companions and pitfalls
Selecting Vitamin C (CAS 50-81-7), my first advice is don't start with the assay — start with whether it fits your process. In Pharmaceutical Intermediates & APIs; Hot Products; Fine Chemicals a lot of people stumble on the “assay is enough” assumption.
What it does in the system
In Pharmaceutical Intermediates & APIs; Hot Products; Fine Chemicals, the first split for Vitamin C (CAS 50-81-7) is 'industrial grade' vs 'food / feed grade' — they are not interchangeable. Food and feed grades carry stricter statutory limits on heavy metals, arsenic, microbes and residues, usually backed by corresponding licences and test reports. Regulatory grade and traceability come before the assay figure. Comparable grades:
- 维生素C涂层 (CAS —)：a comparable grade often evaluated alongside。
- 6-O-acetylascorbic acid (CAS 20229-76-9)：a comparable grade often evaluated alongside。
- Vitamin C phosphate (CAS 23313-12-4)：a comparable grade often evaluated alongside。
Basic specifications
| Name | Vitamin C |
|---|---|
| English name | Vitamin C |
| CAS No. | 50-81-7 |
| Formula | C6H8O6 |
| Molecular weight | 176.12 |
| Applications | Pharmaceutical Intermediates & APIs; Hot Products; Fine Chemicals |
| Standard purity | per batch COA |
| Packaging | confirmed per order |
| Storage | keep sealed in a cool, dry place |
Figures above are published / typical information; final values follow the batch COA and order confirmation.
What actually matters when selecting
Confirm the required grade (food / feed / industrial) — never substitute industrial for food or feed use.
Request and verify test reports for heavy metals, arsenic, microbes and residual solvents against the applicable standard or customer spec.
Mind moisture-proof, contamination-free packaging and transport to avoid drift on arrival.
Retain samples of critical lots and keep incoming-inspection records for traceability and retest.
Mistakes people make
- Using industrial grade in place of food / feed grade: statutory limits differ and mixing them triggers compliance and safety risk.
- Watching assay but ignoring traceability: without the correct grade's test report, even high purity cannot enter the food / feed chain.
- Loose storage and transport: moisture or cross-contamination can make a compliant lot fail on arrival.
Common buyer questions
Where is Vitamin C used in Pharmaceutical Intermediates & APIs; Hot Products; Fine Chemicals?
As a common raw material it serves nutritional fortification, stabilisation or process aid; the exact use depends on the finished product and regulatory grade.
Which grade and documents should I confirm when sourcing Vitamin C?
State food / feed grade requirements and verify safety indicators (heavy metals, microbes) test reports against the applicable standard or customer spec.
Can industrial grade be used as food / feed grade?
No. Products here are supplied for industrial and research use; food or feed use requires the correct grade with full compliance documentation.
Related products worth a look
- 维生素C涂层 (CAS —)
- 6-O-acetylascorbic acid (CAS 20229-76-9)
- Vitamin C phosphate (CAS 23313-12-4)
- 钙+维生素C (CAS —)
- Xyloascorbic acid, D- (CAS 10504-35-5)
- 刺槐豆胶维生素C (CAS —)
See site search for 维生素C or browse the Organic Chemicals directory.
Supply & quality files
Jinan Shenghe Chemical Co., Ltd. supplies chemical raw materials and fine chemicals; a COA ships with every batch, with MSDS and technical data sheets available on request. In your enquiry include product name, CAS, target purity and packaging, and we will provide documents and a quote to the relevant standard.
Contact: info@591daili.com | +86-18553102138
Note: This page is for industrial raw-material technical discussion only. Products are supplied for industrial and research use, not for consumer or medical use. Drinking-water, food, cosmetic or pharmaceutical applications must meet applicable regulations and customer standards; specifications, compliance documents and transport requirements follow the batch COA and order confirmation.