4a-Hydroxy-5-methyltetrahydrofolate

Name: 4a-Hydroxy-5-methyltetrahydrofolate
Brand: Zemixal
SKU: ZX-024852

Reference StandardAvailable on request

4a-Hydroxy-5-methyltetrahydrofolate (CAS 33157-07-2) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

Pack sizes

4a-Hydroxy-5-methyltetrahydrofolate chemical structure

CAS number33157-07-2

FormulaC₂₀H₂₅N₇O₇

Molar mass475.5 g/mol

Physical formSolid

HS code38229090

InChIKeyGJGYABXPRIKIEP-BTTAGBNVSA-N

IUPAC name(2S)-2-[[4-[(2-amino-4a-hydroxy-5-methyl-4-oxo-6,7-dihydro-3H-pteridin-6-yl)methylamino]benzoyl]amino]pentanedioic acid

About 4a-Hydroxy-5-methyltetrahydrofolate

4a-Hydroxy-5-methyltetrahydrofolate is supplied by Zemixal as a characterised reference material for Folinic Acid analysis. Key data (Reference Standard): CAS 33157-07-2, formula C20H25N7O7 and molar mass 475.5 g/mol. It is handled as a solid.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Folinic Acid

See every impurity, metabolite and related compound we list for this API.

Folinic Acid standards

Typical uses

Metabolite identification
Stability-indicating methods
Impurity profiling

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 4a-Hydroxy-5-methyltetrahydrofolate
Product name	4a-Hydroxy-5-methyltetrahydrofolate
Catalogue number	ZX-024852
CAS number	33157-07-2
IUPAC name	(2S)-2-[[4-[(2-amino-4a-hydroxy-5-methyl-4-oxo-6,7-dihydro-3H-pteridin-6-yl)methylamino]benzoyl]amino]pentanedioic acid
Molecular formula	C₂₀H₂₅N₇O₇
Molar mass	475.5 g/mol
Exact mass	475.1815
Grade	Reference Standard
Physical form	Solid
XLogP3	-4.2
H-bond donors / acceptors	7 / 10
Topological polar surface area	219 Å²
HS code	38229090
InChIKey	GJGYABXPRIKIEP-BTTAGBNVSA-N
SMILES	CN1C(CN=C2C1(C(=O)NC(=N2)N)O)CNC3=CC=C(C=C3)C(=O)N[C@@H](CCC(=O)O)C(=O)O
PubChem CID	135618559
Synonyms	4a-Hydroxy-5-Methyltetrahydrofolic Acid, 4a-hydroxy-n5-methyltetrahydrofolic acid, 4-alpha-hydroxy-5-methyltetrahydrofolic acid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of 4a-Hydroxy-5-methyltetrahydrofolate
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 4a-Hydroxy-5-methyltetrahydrofolate

Which CAS number identifies 4a-Hydroxy-5-methyltetrahydrofolate?

4a-Hydroxy-5-methyltetrahydrofolate is registered under CAS 33157-07-2. You may also see it listed as 4a-Hydroxy-5-Methyltetrahydrofolic Acid, 4a-hydroxy-n5-methyltetrahydrofolic acid, 4-alpha-hydroxy-5-methyltetrahydrofolic acid. Our catalogue number for this item is ZX-024852.

What are the formula and molar mass of 4a-Hydroxy-5-methyltetrahydrofolate?

For 4a-Hydroxy-5-methyltetrahydrofolate, its formula is C20H25N7O7 and its molar mass is 475.5 g/mol. The systematic (IUPAC) name is (2S)-2-[[4-[(2-amino-4a-hydroxy-5-methyl-4-oxo-6,7-dihydro-3H-pteridin-6-yl)methylamino]benzoyl]amino]pentanedioic acid. InChIKey GJGYABXPRIKIEP-BTTAGBNVSA-N lets you match it in any structure database.

How is 4a-Hydroxy-5-methyltetrahydrofolate used in pharmaceutical QC?

4a-Hydroxy-5-methyltetrahydrofolate is a characterised reference material linked to Folinic Acid. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for 4a-Hydroxy-5-methyltetrahydrofolate?

This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 4a-Hydroxy-5-methyltetrahydrofolate?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship 4a-Hydroxy-5-methyltetrahydrofolate to my country?

Yes. 4a-Hydroxy-5-methyltetrahydrofolate ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

More Folinic Acid standards

More in Metabolites & Degradation Products

N-Nitroso-leucovorin-2

CAS: 77314-00-2
Formula: C₂₀H₂₂N₈O₈
MW: 502.4 g/mol

ZX-024855

5-Formyl-5,6,7,8-tetrahydropteroic acid

CAS: 4349-43-3
Formula: C₁₅H₁₆N₆O₄
MW: 344.33 g/mol

ZX-023088

Folinic Acid EP Impurity B

CAS: 98814-60-9
Formula: C₂₁H₂₃N₇O₈
MW: 501.4 g/mol

ZX-021742

5-Methyl-Tetrahydropteroic Acid

CAS: 4349-41-1
Formula: C₁₅H₁₈N₆O₃
MW: 330.34 g/mol

ZX-021740

(6S)-Tetrahydrofolic Acid

CAS: 71963-69-4
Formula: C₁₉H₂₃N₇O₆
MW: 445.4 g/mol

ZX-029620

5,10-Methenyltetrahydrofolic Acid Impurity

CAS: 7444-29-3
Formula: C₂₀H₂₁N₇O₆
MW: 455.4 g/mol

ZX-004291

Leucovorin Calcium Salt Pentahydrate

CAS: 6035-45-6
Formula: C₂₀H₃₁CaN₇O₁₂
MW: 601.6 g/mol

ZX-043888

Fluticasone Propionate impurity 1

CAS: 59860-80-9
Formula: C₂₅H₃₂F₂O₆
MW: 466.5 g/mol

ZX-024836

Have a list of compounds to price?

Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.

Bulk CAS lookup Open quote list