Tetrabromo-o-sulfobenzoic Anhydride TCI T0048

Chemical Identity

CAS No.: 68460-01-5
PubChem: CID 110335·SID 87576067
Formula: C7Br4O4S
Molecular weight: 499.76 g/mol
Purity: >98.0%(GC)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 4,5,6,7-tetrabromo-1,1-dioxo-2,1lambda6-benzoxathiol-3-one
SMILES: C12=C(C(=C(C(=C1Br)Br)Br)Br)S(=O)(=O)OC2=O
InChIKey: QPGYGIVRJIICGZ-UHFFFAOYSA-N

Rp 2.093.700,00

~~Rp 1.479.450,00~~ Rp 2.093.700,00

Sale Sold out

Shipping calculated at checkout.

Berat 5g 25g

Pembayaran hanya melalui request quotation dan dilakukan setelah tim kami menghubungi Anda. Mohon cantumkan nomor WhatsApp aktif untuk konfirmasi pesanan & pembuatan invoice. Estimasi pengiriman 2-4 minggu setelah pembayaran.

Dokumen Keamanan & Mutu

↓ Unduh SDS / MSDS (PDF resmi TCI)

CoA (Certificate of Analysis)

Spesifik per batch produksi — diterbitkan dan dikirim bersama barang sesuai nomor lot yang Anda terima.

Contoh CoA segera tersedia.

💬 Minta CoA via WhatsApp

View full details

TCI T0048 Tetrabromo-o-sulfobenzoic Anhydride (CAS 68460-01-5) is a cyclic mixed anhydride. It forms from a sulfonic acid group and a carboxylic acid group on a benzene ring that carries bromine at all four remaining positions. A related compound, o-sulfobenzoic anhydride, is a classic starting material for making sulfonephthalein dyes by condensation with phenols. This tetrabrominated version lets chemists make indicators and dyes whose phthalein ring is also brominated. In the laboratory, it is used as a non-heterocyclic building block for dye chemistry and organic synthesis.

Chemists choose this compound because its sulfonic-carboxylic anhydride group reacts readily with nucleophiles such as phenols, alcohols, and amines. One reaction can add both a sulfonate group and a carboxylate group to the target molecule. The four bromine atoms on the ring raise the molecular weight and change the electronic properties, which shifts the color and acid-base behavior of the dyes made from it. Because the precursor is already brominated, researchers can design new indicators more precisely and avoid an extra bromination step that is hard to control.

In Indonesian laboratories, this reagent suits university and research-institute groups that work on organic synthesis, dye chemistry, and the development of acid-base indicators. It is useful in academic projects that study how halogen substitution changes the color and transition behavior of sulfonephthalein dyes. Synthetic chemistry teams that need a reactive brominated aromatic building block can also use it, as can analytical laboratories that want custom indicators for specialized titration or detection work.

Related TCI products

Sulfonephthalein dye synthesis: the anhydride condenses with phenols to build sulfonephthalein frameworks, and the brominated ring is carried into the final dye structure.
Acid-base indicator development: the four bromine atoms change the electronic properties, so researchers can adjust the color and the acid-base transition behavior of new indicator molecules.
Introducing sulfonate and carboxylate groups: the mixed anhydride opens when it reacts with alcohols or amines, adding both acidic groups to a target molecule in a single step.
Halogenated building-block chemistry: as a pre-brominated non-heterocyclic aromatic, it removes the need for a separate bromination step that can be hard to control.
Structure-property studies of dyes: comparing products made from this reagent with products from non-brominated analogues helps researchers see how halogen substitution affects color and acidity.

Brand	TCI (product code T0048)
CAS number	68460-01-5
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	available in the pack sizes listed by TCI for this product code
Physical form	see the TCI product label and certificate of analysis
Storage	keep tightly closed in a cool, dry place, following the TCI label and Safety Data Sheet

Keep the container tightly closed in a cool, dry, well-ventilated place, away from moisture and direct sunlight. Anhydrides generally react with water, alcohols, and amines, so limit contact with air humidity and reseal the container promptly after use. Keep the reagent in its original supplier container or in a compatible, clearly labelled glass container with a secure cap. Handle it in a fume hood and wear suitable gloves, safety glasses, and a laboratory coat. Avoid creating dust and avoid contact with skin and eyes. Keep it away from incompatible substances, and read the TCI Safety Data Sheet for full hazard, first-aid, and disposal information before use.

—