X-GalNAc
X-GalNAc (CAS: 129572-48-1), with the empirical formula C16H18BrClN2O6 and a molecular weight of 449.68 g/mol, is a chromogenic substrate used in molecular biology. This fine chemical is particularly valuable for the selection of recombinant bacterial colonies exhibiting the lac+ phenotype. It is also employed for the detection of Candida albicans, facilitating microbial identification in laboratory settings.
- IUPAC
- 5-Bromo-4-chloro-3-indolyl 2-acetamido-2-deoxy-β-D-galactopyranoside,5-Bromo-4-chloro-3-indolyl N-acetyl-β-D-galactosaminide,X-Galactosaminide
- Synonyms
- 5-Bromo-4-chloro-3-indolyl 2-acetamido-2-deoxy-β-D-galactopyranoside5-Bromo-4-chloro-3-indolyl N-acetyl-β-D-galactosaminideX-Galactosaminide
Bacterial Colony Selection
X-GalNAc serves as an effective chromogenic substrate for selecting bacterial colonies that possess the lac+ phenotype. Its use aids in distinguishing between successfully transformed and non-transformed bacterial cells in molecular cloning experiments.
Microbial Detection
This compound is suitable for the detection of *Candida albicans*. Upon enzymatic cleavage by specific microbial enzymes, it produces a detectable colour change, aiding in the identification of this yeast species.
Enzyme Substrate in Molecular Biology
As a specialized enzyme substrate, X-GalNAc is utilized in various molecular biology applications. It is valuable for assays involving enzymes that act on N-acetyl-beta-D-galactosaminide derivatives.
| Molecular weight | 449.68 |
|---|---|
| Empirical formula | C16H18BrClN2O6 |
| Assay | ≥98.0% (TLC) |
| Grade | for molecular biology |
| Form | powder |
| Solubility | DMF: solubleDMSO: soluble |
| Storage temperature | −20°C |
| Melting point | ≥220 °C(lit.) |
| Application | Suitable for use in selection of recombinant bacterial colonies with the lac+ phenotype. Also suitable for the detection of Candida albicans. |
| Suitability | suitable for β-galactosidase test |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Sterility | non-sterile |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is X-GalNAc used for?
+
X-GalNAc is primarily used as a chromogenic substrate for the selection of recombinant bacterial colonies with the lac+ phenotype and for the detection of *Candida albicans*.
What are the CAS number and formula for X-GalNAc?
+
The CAS number for X-GalNAc is 129572-48-1. Its empirical formula is C16H18BrClN2O6.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies X-GalNAc with an assay of ≥98.0% (TLC), graded for molecular biology. This product is not represented as USP, BP, or EP.
What are the safety considerations when handling X-GalNAc?
+
When handling X-GalNAc, it is essential to use personal protective equipment including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is also recommended. The compound has a WGK Germany rating of 3.
How is X-GalNAc typically stored and shipped?
+
X-GalNAc should be stored at -20°C and is supplied as a non-sterile powder. TSS exports fine chemicals globally.
How can I request a quote or sample for X-GalNAc?
+
To request a quote or a sample of X-GalNAc, please contact our sales team through the website or by phone.
▶ Related products
![(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide (C8H13N3O4) — chemical structure, CAS 138472-01-2; Biochemicals & Reagents, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F138472-01-2.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide
C8H13N3O4
Biochemicals & Reagents![(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide (C14H18N4O4) — chemical structure, CAS 162626-99-5; Biochemicals & Reagents, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F162626-99-5.png&w=3840&q=75)
(±)-(E)-4-Ethyl-2-[(Z)-hydroxyimino]-5-nitro-3-hexen-1-yl-nicotinamide
C14H18N4O4
Biochemicals & Reagents
(±)-2,5-Dimethoxy-4-bromoamphetamine hydrobromide
Biochemicals & Reagents
(±)-2-(p-Methoxyphenoxy)propionic acid
C10H12O4
Biochemicals & Reagents
(±)-2-Amino-6,7-dihydroxy-1,2,3,4-tetrahydronaphthalene hydrobromide
C10H13NO2·HBr
Biochemicals & Reagents
(±)-2-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxydecanoic acid
C10H20O3
Biochemicals & Reagents
(±)-3-Hydroxyoctanoic acid
C8H16O3
Biochemicals & Reagents▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis