Molekula
5-Bromo-4-chloro-3-indolyl-alpha-D-galactopyranoside (X-alpha-gal)
5-Bromo-4-chloro-3-indolyl-alpha-D-galactopyranoside (X-alpha-gal) is a chromogenic substrate used in enzymatic assays, particularly for detecting beta-galactosidase activity. It is a key reagent in molecular biology and histology applications. CAS: 107021-38-5, Molecular Formula: C14H15BrClNO6, Molecular Weight: 408.63 g/mol. Stored at -15 to -20 °C. Molekula supplies X-alpha-gal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
5-Bromo-4-chloro-3-indolyl-alpha-D-galactopyranoside (X-alpha-gal) is a chromogenic substrate used in enzymatic assays, particularly for detecting beta-galactosidase activity. It is a key reagent in molecular biology and histology applications. CAS: 107021-38-5, Molecular Formula: C14H15BrClNO6, Molecular Weight: 408.63 g/mol. Stored at -15 to -20 °C. Molekula supplies X-alpha-gal from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white powder |
| Water | ≤2% |
| Specific optical rotation | +130 to +148 |
| Purity TLC | ≥99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Shelf Life | 24 months |
Identification
| Property | Value |
|---|---|
| SKU | 87527781 |
| CAS Number | 107021-38-5 |
| Molecular Formula | C14H15BrClNO6 |
| Molecular Weight | 408.63 |
| SMILES | C1=CC(=C(C2=C1NC=C2O[C@@H]3[C@@H]([C@H]([C@H]([C@H](O3)CO)O)O)O)Cl)Br |
| REACH Code | Y110 |
| HTS Code | 29400060 |
| Tariff Code | 2940000080 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
For research and industrial use only
Documents
Safety Data Sheets (SDS)
Available in IT, FR, ES, DE, EN.
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IT - (87527781) 5-BROMO-4-CHLORO-3-INDOLYL-ALPHA-D-GALACTOPYRANOSIDE (X-ALPHA-GAL) [107021-38-5].pdf
SDS · IT · 185 KB
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FR - (87527781) 5-BROMO-4-CHLORO-3-INDOLYL-ALPHA-D-GALACTOPYRANOSIDE (X-ALPHA-GAL) [107021-38-5].pdf
SDS · FR · 188 KB
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ES - (87527781) 5-BROMO-4-CHLORO-3-INDOLYL-ALPHA-D-GALACTOPYRANOSIDE (X-ALPHA-GAL) [107021-38-5].pdf
SDS · ES · 188 KB
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DE - (87527781) 5-BROMO-4-CHLORO-3-INDOLYL-ALPHA-D-GALACTOPYRANOSIDE (X-ALPHA-GAL) [107021-38-5].pdf
SDS · DE · 188 KB
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EN - (87527781) 5-BROMO-4-CHLORO-3-INDOLYL-ALPHA-D-GALACTOPYRANOSIDE (X-ALPHA-GAL) [107021-38-5].pdf
SDS · EN · 184 KB
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 5-Bromo-4-chloro-3-indolyl-alpha-D-galactopyranoside (X-alpha-gal) used for?
It is primarily used as a chromogenic substrate for detecting beta-galactosidase enzyme activity in molecular biology applications, such as in blue-white screening of recombinant clones.
What is the chemical formula and molecular weight of X-alpha-gal?
The formula is C14H15BrClNO6 with a molecular weight of 408.63 g/mol.
How should X-alpha-gal be stored?
It should be stored at temperatures between -15 and -20 °C to maintain stability and prevent degradation.
What grade is available for X-alpha-gal?
Available in high-purity research grade suitable for laboratory use in enzymatic assays and molecular biology.
Can Molekula supply X-alpha-gal in bulk?
Yes, Molekula can supply X-alpha-gal in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of X-alpha-gal?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.