Overview
Pyridoxine (CAS 65-23-6 ), also known as Pyridoxol, is the stable, commercially dominant form of Vitamin B6 used across pharmaceutical, nutritional, and cosmetic manufacturing. It functions as an essential micronutrient active.
This ingredient supplies B6 activity in finished formulations where bioavailability and regulatory acceptance are primary sourcing criteria. In pharmaceutical manufacturing, it is the active ingredient in B6 tablets and injectables.
It is also used in combination vitamin preparations targeting deficiency treatment and prophylaxis. Nutritional supplement and functional food producers incorporate it into multivitamin blends and fortified cereals.
It is found in infant formula and sports nutrition products to meet declared B6 label claims. Cosmetic formulators use it in scalp treatments and anti-hair loss serums where B6 activity supports keratinocyte function.
The material also serves as a pharmaceutical intermediate in the synthesis of Pyridoxal-5-Phosphate, the active coenzyme form. It is commercially supplied as a white crystalline powder, most commonly as Pyridoxine Hydrochloride.
This salt form is preferred for its improved stability and water solubility in finished dosage forms. Standard grades include USP , BP , Ph. Eur. , and FCC , covering pharmaceutical and food-grade requirements.
Bulk quantities are available for industrial-scale manufacturing, with fine particle specifications offered for direct compression. These grades ensure compliance with global quality standards for diverse industrial applications.
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Physical Properties
| Melting Point | 159-162 °C |
| Boiling Point | 298.46°C (rough estimate) |
| Density | 1.2435 (rough estimate) |
| Appearance | crystalline solid |
| Color | White to Off-White |
| Odor | Odorless |
| Form | Solid |
| Refractive Index | 1.5100 (estimate) |
| Log P | -0.770 |
Safety & Handling
Warning GHS07 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29362500 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 65-23-6
- EC Number
- 200-603-0
- Mol. Weight
- 169.18
- HS Code
- 29362500
- Category
- Heterocyclic Compounds