[1,3]thiazolo[5,4-d]pyrimidin-7-ylhydrazine CAS 21308-93-0
| CAS No. | 21308-93-0 |
| Molecular Formula | C5H5N5S |
| Molecular Weight | 167.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), [1,3]thiazolo[5,4-d]pyrimidin-7-ylhydrazine 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.
[1,3]thiazolo[5,4-d]pyrimidin-7-ylhydrazine (CAS 21308-93-0) is a high-purity analytical reference standard with the molecular formula C5H5N5S and a molecular weight of 167.19 g/mol.
Owing to a nitrile group, sulfur-containing functionality, [1,3]thiazolo[5,4-d]pyrimidin-7-ylhydrazine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 167.19 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.
Physical & Chemical Properties
| Molecular Formula | C5H5N5S |
| Molecular Weight | 167.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related thiazolo Standards
- Thiazolo[4,5-d]pyrimidine-2,7-diamine (CAS 30162-02-8)
- [1,3]thiazolo[5,4-c]pyridin-2-ylhydrazine (CAS 108310-80-1)
- 2-Methyl-[1,3]thiazolo[5,4-d]pyrimidin-7-amine (CAS 112273-85-5)
- 6-Methyl-[1,3]thiazolo[4,5-b]pyrazin-2-amine (CAS 1221974-33-9)
- [1,3]thiazolo[4,5-b]pyridine-2,5-diamine (CAS 13575-43-4)
- [1,3]thiazolo[4,5-b]pyridin-2-ylhydrazine (CAS 152170-31-5)
- [1,3]thiazolo[4,5-c]pyridin-2-ylhydrazine (CAS 65128-68-9)
- [1,3]thiazolo[5,4-b]pyridin-2-ylhydrazine (CAS 57135-11-2)
Recommended Standards
- [1,3]Oxathiolo[5,4-c]pyridine-6-carbaldehyde (CAS 872714-69-7)
- 1-(Thieno[3,2-c]isoxazol-3-yl)ethanone (CAS 339364-24-8)
- 4H-Pyrrolo[2,3-d]thiazole-5-carboxamide (CAS 1934648-57-3)
- 2(3H)-benzoxazolethione, 6-hydroxy- (CAS 74537-64-7)
- 6935-29-1 Quinoxaline, 1-oxide 4-23-00-01227 (Beilstein Handbook Reference) BRN 0117865 NSC 193509 NSC 48942 Quinoxaline monooxide Quinoxaline, N-monooxide 4-Quinoxaline mono-N-oxide Quinoxaline N-oxide Quinoxaline 1-oxide (CAS 6935-29-1)
- tert-Butyl ((2-benzyl-2,4,5,7-tetrahydropyrano[3,4-c]pyrazol-7-yl)methyl)carbamate (CAS 1422344-07-7)
- 2-Cyano-n-(3-methoxyphenyl)acetamide (CAS 91818-29-0)
- 3-Bromo-5-(piperidin-1-ylsulfonyl)pyridine-4-thiol (CAS 1352499-92-3)
- Methyl 5-cyclopropyl-2-(4-fluorophenyl)-6-nitrobenzofuran-3-carboxylate (CAS 1331942-97-2)
- 6-Chloro-[2,3'-bipyridine]-4-carbaldehyde (CAS 1227583-31-4)
- 3-Amino-3-(3-phenoxyphenyl)propanoic acid (CAS 202131-32-6)
- 5-(((4,6-Dimethylpyrimidin-2-yl)thio)methyl)-4-(4-fluorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 887205-52-9)
- 5-Iodo-1-methyluracil (CAS 45774-47-8)
- Tirzepatide Impurity 52 (CAS CATO-C4X-324052)
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