Pyridoxine free base

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MedKoo CAT#: 329469

CAS#: 65-23-6 (free base)

Description: Pyridoxine (also called pyridoxol, not to be confused with pyridoxal) is one form of vitamin B6. Its hydrochloride salt, pyridoxine hydrochloride, is used as a vitamin B6 dietary supplement.

Chemical Structure

Pyridoxine free base
CAS# 65-23-6 (free base)

Theoretical Analysis

MedKoo Cat#: 329469
Name: Pyridoxine free base
CAS#: 65-23-6 (free base)
Chemical Formula: C8H11NO3
Exact Mass: 69.0739
Molecular Weight: 169.18
Elemental Analysis: C, 56.80; H, 6.55; N, 8.28; O, 28.37

Price and Availability

Size Price Availability Quantity
1.0g USD 60.0 2 Weeks
2.0g USD 90.0 2 Weeks
5.0g USD 150.0 2 Weeks
10.0g USD 250.0 2 Weeks
20.0g USD 350.0 2 Weeks
50.0g USD 450.0 2 Weeks
100.0g USD 650.0 2 Weeks
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Related CAS #: 65-23-6 (free base)   58-56-0 (hydrochloride)    

Synonym: Pyridoxine; pyridoxol. vitamin B6.

IUPAC/Chemical Name: 4,5-Bis(hydroxymethyl)-2-methylpyridin-3-ol


InChi Code: InChI=1S/C8H11NO3/c1-5-8(12)7(4-11)6(3-10)2-9-5/h2,10-12H,3-4H2,1H3


Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >2 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.9001

Certificate of Analysis:

Safety Data Sheet (SDS):

Preparing Stock Solutions

The following data is based on the product molecular weight 169.18 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: van Karnebeek CD, Tiebout SA, Niermeijer J, Poll-The BT, Ghani A, Coughlin CR 2nd, Van Hove JL, Richter JW, Christen HJ, Gallagher R, Hartmann H, Stockler-Ipsiroglu S. Pyridoxine-Dependent Epilepsy: An Expanding Clinical Spectrum. Pediatr Neurol. 2016 Jun;59:6-12. doi: 10.1016/j.pediatrneurol.2015.12.013. Review. PubMed PMID: 26995068.

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Additional Information

Related CAS#
CAS#65-23-6 (Pyridoxine free base)
CAS#58-56-0 (Pyridoxine hydrochloride)