1H-1,2,3-Triazole-5-carboxylic acid

CAS 16681-70-2 C₃H₃N₃O₂ 113.08 g/mol Catalogue item Heterocycles

Structure of 1H-1,2,3-Triazole-5-carboxylic acid, CAS 16681-70-2 — Structure · C3H3N3O2

CAS number: 16681-70-2
Molecular formula: C₃H₃N₃O₂
Molecular weight: 113.08 g/mol
Standard packing: 1kg / 25kg / 100kg

1H-1,2,3-Triazole-5-carboxylic acid (CAS 16681-70-2) is a carboxylic acid building block of formula C3H3N3O2, 113.08 g/mol.

The carboxylic acid is activated in situ for amidation or esterification, or used directly for salt formation; the free acid is also the form that stores best.

The formula C3H3N3O2 resolves to 3 carbons with 2 oxygens and 3 nitrogens. Short-chain entries of this size are volatile enough that headspace and packing matter: the lot is shipped in sealed units and opened in a fume hood.

Handling and storage

Acids are stored away from amines and bases, and the container is kept closed because the material is hygroscopic.

Ordering

Supplied in 1kg / 25kg / 100kg; a gram-scale sample is quoted against the same specification, so the analysis seen at sample stage is the analysis of the kilo lot.

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CAS	Compound	Formula	MW	Packing	Quote
32477-35-3	1-(Heptafluorobutyryl)imidazole	C₇H₃F₇N₂O	264.10	1kg / 25kg / 100kg	Request
23616-31-1	1,6-Naphthyridin-5(6H)-one	C₈H₆N₂O	146.15	1kg / 25kg / 100kg	Request
872701-04-7	1H-1,2,3-Triazole-4-butanoic acid	C₆H₉N₃O₂	155.15	1kg / 25kg / 100kg	Request
521300-19-6	1H-Pyrazole-3-carboxylic acid, 5-cyclopentyl-, ethyl ester	C₁₁H₁₆N₂O₂	208.26	1kg / 25kg / 100kg	Request
19668-85-0	2-(3-Methyl-1,2-oxazol-5-yl)acetic acid	C₆H₇NO₃	141.12	1kg / 25kg / 100kg	Request
218784-65-7	2-(3-Methylisoxazol-5-yl)ethanol	C₆H₉NO₂	127.14	1kg / 25kg / 100kg	Request
114905-18-9	2-(5-Chloropentyl)-1,3-dioxolane	C₈H₁₅ClO₂	178.65	1kg / 25kg / 100kg	Request
61266-70-4	2-Hydroxymethyloxetane	C₄H₈O₂	88.11	1kg / 25kg / 100kg	Request

Specification

CAS	16681-70-2
Formula	C₃H₃N₃O₂
Molecular weight	113.08 g/mol
Packing	1kg / 25kg / 100kg
Assay	lot specific, on COA
Appearance	see COA
Storage	cool, dry, inert

Ordering

Catalogue items ship from stock or are made to order, whichever the lot status requires. A gram-scale sample is available before a kilo lot is committed.

Request a quotation

Or email [email protected] quoting 16681-70-2.

Supplied for laboratory and industrial use. Not for drug, cosmetic or household use.

Quotation

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Entry	1H-1,2,3-Triazole-5-carboxylic acid
CAS	16681-70-2
Typical lead time	Stock or 2–4 weeks
Documentation	COA, SDS, spec sheet

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1H-1,2,3-Triazole-5-carboxylic acid (16681-70-2)

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