4H-Pyrrolo[3,2-d]thiazole-5-carboxylic acid CAS 1007386-66-4
| CAS No. | 1007386-66-4 |
| Molecular Formula | C6H4N2O2S |
| Molecular Weight | 168.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4H-Pyrrolo[3,2-d]thiazole-5-carboxylic acid (CAS 1007386-66-4) is a high-purity analytical reference standard with the molecular formula C6H4N2O2S and a molecular weight of 168.17 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4H-Pyrrolo[3,2-d]thiazole-5-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4H-Pyrrolo[3,2-d]thiazole-5-carboxylic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H4N2O2S |
| Molecular Weight | 168.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
- 1H-Pyrrolo[2,3-f]quinoline (CAS 233-36-3)
- 1H-Pyrrolo[3,2-h]quinoline (CAS 233-88-5)
- 1-(1H-pyrrolo[2,3-b]pyridin-6-yl)ethanone (CAS 1427501-41-4)
- 1-{1H-pyrrolo[2,3-b]pyridin-4-yl}ethan-1-one (CAS 915415-16-6)
- 1-(1H-Pyrrolo[2,3-b]pyridin-5-yl)ethanone 1-(1h-pyrrolo[2,3-b]pyridin-5-yl)-ethanone 1-{1h-pyrrolo[2,3-b]pyridin-5-yl}ethan-1-one 5-acetyl-7-azaindole 944937-14-8 ethanone, 1-(1h-pyrrolo[2,3-b]pyridin-5-yl)- (CAS 944937-14-8)
- 1H-Pyrrolo[2,3-b]pyridin-5-amine, 4-chloro- (CAS 930293-37-1)
- 4H-Pyrrolo[2,3-d]thiazole-5-carboxamide (CAS 1934648-57-3)
- Pyrrolo[2,1-b]thiazole-6-carboxylic acid (CAS 956293-18-8)
Recommended Standards
- Tegoprazan Impurity 100 (CAS CATO-C4X-2297100)
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- Flurbiprofen Impurity 89 (CAS 75908-73-5)
- 2-Amino-3-fluoro-N-methylbenzamide (CAS 1017789-26-2)
- 1-Methyl-4-sulfanylpyrrolidin-2-one (CAS 222856-41-9)
- 4-Chloro-N-(2-((4-chloro-3-nitrophenyl)amino)-2-oxoethyl)-N-cyclohexylbenzamide (CAS 332156-36-2)
- (4-((3,3-Dimethylpyrrolidin-1-yl)methyl)phenyl)boronic acid (CAS 1200131-32-3)
- 2-({4-[(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)methyl]-2,5-dimethylpiperazin-1-yl}methylidene)-2,3-dihydro-1H-indene-1,3-dione (CAS 42986-03-8)
- 3-(3-Thienyl)phenylboronic acid (CAS 475206-83-8)
- (R)-2-(3-(difluoromethyl)-4-fluorophenyl)pyrrolidine (CAS 1212895-23-2)
- 2-(3-Methoxypropyl)-2,3-dihydro-1h-isoindol-4-amine (CAS 1099644-34-4)
- 6-((1-Methoxypropan-2-yl)oxy)pyridin-3-amine (CAS 1339509-72-6)
- 1-(Cyclopropylmethyl)-1H-imidazole-2-carbaldehyde (CAS 497855-75-1)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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