Glyoxal Sodium Bisulfite Hydrate (contains oligomers) TCI G0154

Chemical Identity

CAS No.: 332360-05-1
PubChem: CID 16211366·SID 87570352
Formula: C2H2O2.2NaHSO3.xH2O
Molecular weight: 266.15 g/mol
Purity: >90.0%(T)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: disodium;1,2-dihydroxyethane-1,2-disulfonate;hydrate
SMILES: C(C(O)S(=O)(=O)[O-])(O)S(=O)(=O)[O-].O.[Na+].[Na+]
InChIKey: JQYGKJGYGOFFIK-UHFFFAOYSA-L
MDL: MDL00007516

Rp 477.750,00

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Berat 25g

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Glyoxal Sodium Bisulfite Hydrate is the adduct formed from the reaction of glyoxal with sodium bisulfite, supplied in hydrate form and containing oligomers as stated in the product description. In practical terms, the compound is a form of glyoxal "locked" as a solid bisulfite salt, which makes it far easier to weigh, store, and handle than reactive glyoxal solutions. In the laboratory it serves as a controlled source of glyoxal that can be released again under appropriate reaction conditions, and at the same time as a two-carbon building block in organic synthesis.

The principal advantages of this material lie in its stability and convenience. The solid form allows accurate stoichiometric weighing without the need to correct for water content or degree of polymerisation, as would be required with aqueous glyoxal solutions. The bisulfite adduct also suppresses side reactions arising from the reactivity of the free aldehyde during storage, so the quality of the material is better preserved over time. When the carbonyl functionality is needed, it can be recovered by treatment with base or under suitable reaction conditions, making this compound highly useful in heterocyclic synthesis, multicomponent reactions, and the preparation of condensation derivatives with amines and nitrogen-containing compounds.

In Indonesian laboratories, this TCI building block is typically found in organic synthesis and medicinal chemistry groups at universities and research institutes, as well as in industrial R&D units developing fine chemicals and intermediates. Its solid, stable presentation is particularly well suited to local working conditions, where warm and humid ambient air makes the handling of reactive aldehyde solutions more demanding, and where reagents may be stored for extended periods between synthetic campaigns.

Related TCI products

Heterocyclic synthesis: the compound delivers a two-carbon dicarbonyl unit in a stable solid form, supporting the construction of imidazole and related nitrogen heterocycle frameworks under controlled release conditions.
Multicomponent reactions: because the glyoxal moiety is masked as a bisulfite adduct, it can be introduced accurately by weight and liberated in situ, improving reproducibility across one-pot multicomponent protocols.
Condensation with amines: the recovered carbonyl groups react readily with primary amines and other nitrogen nucleophiles, allowing the preparation of diimine and related condensation derivatives in synthetic work.
Controlled glyoxal source: researchers who need glyoxal without handling reactive aqueous solutions can use this adduct to release the aldehyde only when the intended reaction conditions are applied.
Building block screening in medicinal chemistry: the stable solid form supports accurate small-scale stoichiometry during library synthesis, where aqueous glyoxal solutions of uncertain concentration would introduce error.

Brand	TCI
CAS number	332360-05-1
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	available in the standard catalogue pack sizes offered by TCI; please confirm the currently available option when ordering
Physical form	solid hydrate, containing oligomers as described in the product information
Storage	keep in a closed container in a cool, dry place away from moisture

Product Code: G0154

Store the material in its original tightly closed container in a cool, dry, well-ventilated area, protected from moisture and away from heat sources and direct sunlight. Because the compound is a hydrated bisulfite adduct, prolonged exposure to humid air should be avoided; close the container promptly after weighing and consider a desiccator for opened stock. Handle in a fume hood using standard personal protective equipment, including safety goggles, laboratory coat, and chemical-resistant gloves. Avoid contact with acids, which may liberate sulfur dioxide, and keep the material separate from strong oxidising agents. Always consult the manufacturer's safety data sheet before use and follow the disposal procedures applicable in your laboratory.

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