(S)-6-(Chloromethyl)dihydro-2H-pyran-2,4(3H)-dione CAS 135999-58-5
| CAS No. | 135999-58-5 |
| Molecular Formula | C6H7ClO3 |
| Molecular Weight | 162.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(S)-6-(Chloromethyl)dihydro-2H-pyran-2,4(3H)-dione (CAS 135999-58-5), molecular formula C6H7ClO3 and molecular weight 162.57 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, (S)-6-(Chloromethyl)dihydro-2H-pyran-2,4(3H)-dione is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.57 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures (S)-6-(Chloromethyl)dihydro-2H-pyran-2,4(3H)-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H7ClO3 |
| Molecular Weight | 162.57 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
Related S Standards
- 3-(Chloromethyl)-5-(methoxymethyl)-1,2,4-oxadiazole (CAS 1015846-54-4)
- 5-(Chloromethyl)-3-(methoxymethyl)-1,2,4-oxadiazole (CAS 120003-15-8)
- 2-(chloromethyl)-5-(methoxymethyl)-1,3,4-oxadiaZole (CAS 1248308-40-8)
- 5-(chloromethyl)-5-methylimidazolidine-2,4-dione (CAS 33109-56-7)
- 1-(Chloromethyl)-2,3-difluorobenzene (CAS 446-57-1)
- 2-(Chloromethyl)-5-fluoropyrimidin-4(3H)-one (CAS 1240598-06-4)
- 5-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole (CAS 1429418-42-7)
- 3-(Chloromethyl)-1-(2-fluoroethyl)-1h-pyrazole (CAS 1429418-90-5)
Recommended Standards
- 4-Chloro-5,6-dihydro-2H-pyran-3-carboxylic acid (CAS 1541667-98-4)
- 1-(2-Chloroacetyl)imidazolidin-2-one (CAS 57013-09-9)
- 1-(2-Chloroacetyl)pyrazolidin-3-one (CAS 205829-17-0)
- 3,4-Difluor-benzylchlorid 3,4-difluorobenzyl chloride 3,4-difluorobenzyl chloride; 3,4-difluorobenzylchloride; 4-chloromethyl-1,2-difluoro-benzene; 698-80-6 EBD935305 (CAS 698-80-6)
- (4-Pivalamidophenyl)boronic acid (CAS 182344-22-5)
- 1-(4-Methylpiperazin-1-yl)-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethan-1-one (CAS 1010104-30-9)
- 3-Phenyl-5,6-dihydrothieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 21004-33-1)
- N-Benzyl-N-(4-benzyl-2-methyloxazol-5-yl)acetamide (CAS 87783-85-5)
- Methyl 2-amino-4-(4-cyclohexylphenyl)thiophene-3-carboxylate (CAS 350997-15-8)
- Hematoporphyrin dimethyl ester (CAS 32562-61-1)
- 2-Amino-3H-indol-3-one (CAS 475142-96-2)
- 1-(4-(Hydroxy(phenyl)methyl)phenyl)ethanone (CAS 94705-09-6)
- 1-((3-Bromophenyl)sulfonyl)piperidin-4-one (CAS 1152584-50-3)
- Insulin Degludec Impurity 10 (CAS CATO-C4X-215710)
Why CATO?
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