Thiazolyl Blue
Also known as: MTT, 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide, Methylthiazoletetrazolium bromide, Thiazolyl Blue Tetrazolium Bromide, 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, 2-(4,5-Dimethyl-2-thiazolyl)-3,5-diphenyl-2H-tetrazol-3-ium bromide
Thiazolyl Blue (CAS 298-93-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H16BrN5S and a molecular weight of 414.322 g/mol. Key property: a melting point of 195 °C (dec.)(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 2 suppliers, from 18.20 to 799.20 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 298-93-1
- Jingsj CID
- J-12038-4
- Molecular Formula
- C18H16BrN5S
- Molecular Weight
- 414.322 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 100g | ¥1,820.00 | $2.72 /gBest ¥18.20/g CNY | CN China MOQ 100g | |
In Stock | >98.0%(T) 5g | ¥2,817.00 | $84.31 /g ¥563.40/g CNY | CN China MOQ 5g | |
In Stock | >98.0%(T) 1g | ¥799.20 | $119.6 /g ¥799.20/g CNY | CN China MOQ 1g |
Physicochemical Properties
| Melting Point | 195 °C (dec.)(lit.) |
|---|---|
| Exact Mass | 413.030975 |
| PSA | 75.72000 |
| LogP | 0.28830 |
| Additional Property | Slightly soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H341 — Suspected of causing genetic defects
Activity & Biological Data
| Additional Information | [1]. Berridge MV, et al. Tetrazolium dyes as tools in cell biology: new insights into their cellular reduction. Biotechnol Annu Rev. 2005;11:127-52. |
|---|
Customs & Trade Information
| HS Code | 29341000 |
|---|
Frequently Asked Questions
What is the CAS number of Thiazolyl Blue?
The CAS number of Thiazolyl Blue is 298-93-1.
What are the molecular formula and molecular weight of Thiazolyl Blue?
Thiazolyl Blue has molecular formula C18H16BrN5S and molecular weight 414.322 g/mol.
Which suppliers offer Thiazolyl Blue?
2 supplier(s) listed; reference unit price ¥18.20–799.20 /g.
Is Thiazolyl Blue hazardous?
Thiazolyl Blue has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thiazolyl Blue (CAS 298-93-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12038-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.