S-4-Cyanobenzyl ethanethioate CAS 643750-00-9
| CAS No. | 643750-00-9 |
| Molecular Formula | C10H9NOS |
| Molecular Weight | 191.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, S-4-Cyanobenzyl ethanethioate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 191.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
S-4-Cyanobenzyl ethanethioate (CAS 643750-00-9), molecular formula C10H9NOS and molecular weight 191.25 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C10H9NOS |
| Molecular Weight | 191.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related S Standards
- S-2-Cyanobenzyl ethanethioate (CAS 887092-54-8)
- 2-((2-Cyanobenzyl)amino)acetic acid (CAS 1153397-38-6)
- (3-Cyanobenzyl)glycine (CAS 926252-79-1)
- (4-Cyanobenzyl)glycine (CAS 328552-85-8)
- 4-Cyanobenzyl Bromide (CAS 17201-43-3)
- 3-(P-cyanobenzyl)-piperidine (CAS 1158746-94-1)
- 3-Cyanobenzyl-d6 Bromide (CAS 1219802-21-7)
- 2-(3-Cyanobenzyl)butanoic acid (CAS 1269531-79-4)
Recommended Standards
- Spiro[benzo[b][1,4]thiazine-2,1'-cyclopropan]-3(4H)-one (CAS 681286-61-3)
- Pyridin-3-yl(thiophen-2-yl)methanol (CAS 21314-77-2)
- 38942-51-7 4H-1,2,4-Triazole-3-thiol, 4-methyl-5-phenyl- G-32465 2,4-Dihydro-4-methyl-5-phenyl-3H-1,2,4-triazole-3-thione ENT 25,558-X Geigy G-32465 3H-1,2,4-Triazole-3-thione, 2,4-dihydro-4-methyl-5-phenyl- (CAS 38942-51-7)
- pyridin-2-yl(thiophen-2-yl)methanol (CAS 21327-69-5)
- 5-(Pyrimidin-2-yl)nicotinic acid (CAS 1237518-66-9)
- Fmoc-Tyr(tBu)-OH (CAS 71989-38-3)
- 1-(2-Fluorobenzoyl)-1,4-diazepane (CAS 926213-29-8)
- 4-(Benzyloxy)-3-(naphthalen-2-ylmethyl)-4-oxobutanoic acid (CAS 1093740-17-0)
- 2-(2-Amino-5-fluoro-4-iodophenoxy)ethan-1-ol (CAS 1468921-05-2)
- (1,1-Dimethoxyethyl)cyclopropane (CAS 52829-97-7)
- 4-Cyano-N-propylbenzamide (CAS 855264-75-4)
- 4-Chloro-N-cyclopropyl-2-fluorobenzamide (CAS 1090552-62-7)
- 5-Hydroxy L-Tryptophan Methyl Ester (CAS 60971-91-7)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
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