9-Isobutyl-6-(isopropylthio)-9H-purin-2-amine CAS 91637-42-2
| CAS No. | 91637-42-2 |
| Molecular Formula | C12H19N5S |
| Molecular Weight | 265.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 9-Isobutyl-6-(isopropylthio)-9H-purin-2-amine.
9-Isobutyl-6-(isopropylthio)-9H-purin-2-amine (CAS 91637-42-2), molecular formula C12H19N5S and molecular weight 265.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 9-Isobutyl-6-(isopropylthio)-9H-purin-2-amine (C12H19N5S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 265.38 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H19N5S |
| Molecular Weight | 265.38 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Isobutyl Standards
- 9-Isobutyl-6-(propylthio)-9H-purin-2-amine (CAS 56964-85-3)
- N-Isobutyl-N-(1-methyl-1H-pyrazol-3-yl)heptanamide (CAS 62400-00-4)
- Isobutyl 1-(furan-2-ylmethyl)piperidine-4-carboxylate (CAS 1031843-74-9)
- 4-(1-Isobutyl-1H-pyrazol-4-yl)naphthalen-1-amine (CAS 1394023-82-5)
- 5-Isobutyl-2-methyl-4-(pyrrolidin-1-ylmethyl)furan-3-carboxylic acid (CAS 435341-88-1)
- n-Isobutyl-2-(4-oxothieno[2,3-d]pyrimidin-3(4h)-yl)acetamide (CAS 875746-79-5)
- Isobutyl 5-bromo-2,2-dimethylpentanoate (CAS 1232140-06-5)
- 6-Isobutyl-5-methyl-4-oxo-1,4-dihydrothieno[2,3-d]pyrimidine-2-carboxylic acid (CAS 83153-39-3)
Recommended Standards
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- 4-(Di-tert-butylphosphino)-N,N-dimethylaniline (CAS 932710-63-9)
- 4-Bromo-6-methyl-7H-pyrrolo[2,3-d]pyrimidine (CAS 1900677-30-6)
- 2-Chloro-4-(trifluoromethyl)phenylisothiocyanate (CAS 175205-38-6)
- 1-(4-Bromophenyl)-1h-pyrazole-4-carboxylic acid (CAS 138907-85-4)
- N-((1-Ethylpyrrolidin-2-yl)methyl)-5-(ethylsulfonyl)-2-methoxy-4-nitrobenzamide (CAS 79893-23-5)
- 3-Hydroxy-6-(trifluoromethyl)-pyridine-2-acetic acid (CAS 1227563-26-9)
- 3-[Methyl-(1-methyl-piperidin-4-yl)-amino]-propionitrile (CAS 1016772-25-0)
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- 3-(1H-pyrazol-1-yl)propanoic acid hydrochloride (CAS 1255718-13-8)
- 2-(4-Acetyl-6-formylpyridin-2-yl)acetic acid (CAS 1393583-12-4)
- 98035-79-1 Small cardioactive peptide A L-Methioninamide, L-alanyl-L-arginyl-L-prolylglycyl-L-tyrosyl-L-leucyl-L-alanyl-L-phenylalanyl-L-prolyl-L-arginyl- SCPA (CAS 98035-79-1)
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