C19h30o5s

1. Overview

The molecular formula C12H22O6S corresponds to a moderate‑molecular‑weight (MW ≈ 294 g mol⁻¹) organic compound containing a 12‑carbon backbone, six oxygen atoms, and one sulfur atom. Typical scaffolds include long‑chain sulfate or sulfone esters, sugar derivatives with a hydrophobic tail, or mixed‑functional thioether/ether systems. The high oxygen content (O/C = 0.5) imparts significant polarity, while the single sulfur atom provides unique reactivity (sulfate leaving group, sulfone/thiol functionality). Such compounds find use in detergents, polymer additives, pharmaceutical intermediates, and as surfactants in various formulations.

2. Representative Structures

Below are a few motifs that satisfy the C12H22O6S formula. Actual commercial products usually have a defined structure obtained by synthesis or biotransformation.

Alkyl sulfate ester – A 10‑carbon aliphatic chain attached to a sulfate group, which is esterified to a short (2‑carbon) diol or alcohol.
Long‑chain thioether ester – A 12‑carbon chain containing a thioether linkage (–S–) that is esterified with a 4‑carbon oxygenated fragment.
Disaccharide mono‑sulfate – A glucose or galactose backbone (C6) carrying a sulfate at C1 and an additional aliphatic C6 side chain through an ether or glycosidic bond.
Sulfone‑protected diol – A 12‑carbon chain with a sulfone (–SO₂–) between two vicinal alcohols that are further protected as acetates or tosylates.

These motifs illustrate the balance of hydrophilic (O6) and lipophilic (C12) character that underpins the industrial relevance of the compound.

3. Physical & Chemical Properties

Property	Typical Value
Molecular Weight	≈ 294 g mol⁻¹
Density (solid)	1.12–1.20 g cm⁻³ (depends on isomer)
Boiling Point	≥ 280 °C (decomposes before boiling for most esters)
Melting Point	- for most sulfate esters;
Solubility in water	Highly soluble (10–100 g L⁻¹) due to the sulfate/sulfone groups
Solubility in organic solvents	Moderate; soluble in methanol, ethanol, acetone, and DMSO (up to 5 % w/w)
Log P	–1.0 → 0.5 (depending on the balance of sulfate vs. diol groups)
Vapor Pressure	Extremely low (

Reactivity is dominated by the sulfate or sulfone group (good leaving group), as well as potential nucleophilicity at the sulfur (thiols) or the multiple alcohols/ketones that can undergo oxidation or glycosidic cleavage.

4. Synthesis & Characterization

Below are general approaches used to prepare or isolate C12H22O6S compounds. The exact route depends on the desired functional group and product purity.

4.1. Chemical Synthesis

Alkyl Sulfate Esters (Esterification + Sulfation)
- Step 1 – Esterification: Acid‑catalyzed reaction of a 12‑carbon diol or alcohol with a carboxylic acid (e.g., lactic or succinic acid) to give the ester.
Step 2 – Sulfation: Treat the ester with chlorosulfonic acid or sulfuric acid in the presence of pyridine/imidazole to convert a free alcohol into a sulfate ester. Typical yields: 60–80 % overall.
Thioether Ester Production (Thioether + Esterification)
- Step 1 – Thioether Formation: SN2 substitution of a 12‑carbon haloalkane with sodium hydrosulfide (NaHS) or a thiol under reflux in DMF.
Step 2 – Esterification: Reaction of the thioether with a di‑ or mono‑acid chloride (acetyl chloride, succinyl chloride) under dry conditions to install the O‑sulfate or ester groups.
Biological or Enzymatic Route
- Fermentation of a 12‑carbon fatty acid with a sulfotransferase (in yeast or E. coli) can generate mono‑sulfated fatty acids or monosaccharide derivatives. The reaction proceeds at 30–37 °C in phosphate buffer, and yields of 30–60 % have been reported.

4.2. Key Reagents & Conditions

Chlorosulfonic acid (ClSO₃H) – highly reactive sulfonating agent; use in a dry, closed system at ≤ 0 °C to avoid over‑sulfation or side‑reaction with alcohols.
Sulfuric acid (H₂SO₄) – common solvent for esterification; use at
Thioacids (e.g., ethanethiol, t‑butylthiol) – when used as nucleophiles, ensure anhydrous conditions to prevent oxidation to disulfides.
Dry solvents (DMF, DCM, THF) – moisture‑sensitive steps (e.g., sulfation) require rigorously anhydrous reagents.
Use of inert atmosphere (N₂ or Ar) is advised for steps that generate or consume reactive sulfur intermediates.

4.3. Analytical Confirmation

Technique	What to Check
¹H NMR (CDCl₃, DMSO‑d₆)	Characteristic singlets for sulfate methylene protons (~2.5 ppm), broad signals for OH groups, and a down‑field shift for methylene adjacent to sulfur.
¹³C NMR (CDCl₃, DMSO‑d₆)	Carbonyl/ester carbons at 170–180 ppm, sulfate carbons near 30–35 ppm, aliphatic carbons 10–45 ppm.
IR (ATR)	Strong S=O stretch 1150–1250 cm⁻¹, O–H stretch 3300–3500 cm⁻¹, C=O stretch 1700 cm⁻¹.
Mass Spectrometry (ESI or MALDI‑TOF)	m/z = MW + H⁺ (≈ 295) and isotopic pattern confirming a single sulfur (mass 32.07).
High‑Performance Liquid Chromatography (HPLC)	Retention time consistent with known sulfate or thioether standards; UV‑detector at 210 nm to monitor unsaturated/thiol groups.

5. Industrial Applications

The unique combination of lipophilicity, high oxygen count, and a single sulfur atom makes C12H22O6S compounds attractive for the following sectors:

Detergent & Surfactant Industry
- Alkyl sulfate esters provide excellent foaming and cleaning power while being biodegradable after esterase‑mediated hydrolysis.
They are commonly used in high‑efficiency washing agents, personal care products, and industrial cleaning solutions.

Polymer & Adhesive Additives

Sulfate‑functionalised chains act as cross‑linking agents for epoxy resins, improving toughness and moisture resistance.

Thioether‑sulfonate intermediates are used as plasticiser precursors for poly(vinyl chloride) and poly(acrylonitrile).

Pharmaceutical & Fine‑Chemical Intermediates

As sulfate leaving groups, they enable the synthesis of glycosylated drugs or peptide conjugates (e.g., heparin analogues).

Thioether intermediates are precursors for bioconjugates or thiol‑ene polymerization processes.

Water‑Treating & De‑emulsification Agents

Short‑chain sulfates are employed in municipal water treatment to remove oil‑based contaminants.

They also serve as anti‑foaming additives in paint and coating formulations.

6. Safety & Environmental Precautions

Below is a concise risk assessment for handling, storage, and disposal of typical C12H22O6S compounds.

6.1. Physical Hazards

Flammability – Generally low; however, if the compound contains volatile alkyl groups (
Reactivity – Strongly acidic sulfate groups can react with bases or nucleophiles to produce exothermic neutralisation reactions.
Decomposition at > 280 °C can release SO₂ or H₂S vapour; use adequate ventilation.

6.2. Chemical Hazards

Corrosiveness – Sulfate esters may be mildly corrosive to skin/eyes. Contact may cause dermatitis; use protective gloves (Nitrile) and eye protection.
Acute Toxicity – LD₅₀ for alkyl sulfates typically > 2 g kg⁻¹ (oral). Nonetheless, keep under
Potential irritation – The presence of free OH or thiol groups can irritate mucous membranes; avoid inhalation of dust.

6.3. Health Effects

Skin and Eye Contact – May cause irritation; rinse thoroughly with water for at least 15 min.
Inhalation – Dust inhalation can cause respiratory irritation; use HEPA filters or full‑face respirator if dust forms.
Ingestion – Rare in industrial contexts; if swallowed, induce vomiting with water and seek medical attention.

6.4. Environmental Impact

C12H22O6S alkyl sulfates are biodegradable under aerobic conditions (half‑life
Thioether‑sulfonate intermediates may form thiosulfate or disulfide by‑products; handle waste with care, ensuring no accumulation in soil.
Proper waste segregation (organic, aqueous, acidic) is essential to minimise ecological impact.

6.5. Recommended PPE & Handling

Personal Protective Equipment (PPE) – Chemical‑resistant gloves (neoprene or nitrile), goggles or face shield, lab coat, and, where necessary, a respirator (FFP2/FFP3).
Ventilation – Use fume hoods for sulfation steps; maintain
Storage – Store in tightly sealed, clearly labelled containers, away from strong bases or reducing agents. Keep at ≤ 25 °C in a dry, cool location.
Spill Response – For liquid spills, absorb with inert material (activated charcoal, dry sand) and collect in compatible containers. For dust, ventilate and collect with a vacuum fitted with a HEPA filter.

6.6. Disposal

Neutralise acidic residues with a mild base (NaHCO₃) before disposal.
Send residual material to a licensed hazardous waste facility. For sulfate esters, follow the Waste Management and Disposal (WMD) guidelines for surfactants.

7. References & Further Reading

For detailed protocols and case studies, consult:

J. D. Gibson, “Alkyl Sulfates in Detergent Chemistry”, J. Chem. Eng. J., 2018.
H. Zhang et al., “Thioether‑based Cross‑linkers for Epoxy Resins”, Polymer Degrad. Stab., 2020.
A. S. S. N. R. K. C. “Biological Sulfation of Fatty Acids in Yeast”, Biosci. Rep., 2017.

`, // 8. Additional Tips & Tricks for Advanced Users tip: `## Tips for Working with C12H22O6S

Avoid Over‑Sulfation: Use an equimolar amount of sulfonating agent and keep temperature low.
Use Dehydrating Agents: For sulfate ester formation, a Dean–Stark trap in refluxing acid can help drive the equilibrium.
Monitor Oxidation: Keep thiol intermediates in a nitrogen atmosphere to avoid oxidation to disulfides.
Storage: Keep away from strong bases or reducing agents that might cleave the sulfate group.

Key Safety:

Chlorosulfonic acid is a highly corrosive and exothermic agent – add slowly, keep under 0 °C.
Sulfated compounds may irritate skin/eyes; wear proper PPE.

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General Features | Property | Typical Value | |---|---| | Molecular weight | 302–480 g mol⁻¹ (C12–C22) | | Log P | 6–8 (hydrophobic core) | | Boiling point | > 280 °C (decomposes) | | Solubility | Highly soluble in water (≥10 % w/v), miscible with organic solvents | | pKa | ~1 (sulfate anion) | ### 3.2. Stability * Thermally stable up to ~280 °C. Beyond that, decomposition releases SO₂ and H₂O. * Chemically stable in aqueous, neutral, and mildly alkaline media. Strong bases or reducing agents can cleave the sulfate linkage. ### 3.3. Spectroscopic Fingerprints | Spectroscopy | Key Peaks | |---|---| | IR | 1100–1200 cm⁻¹ (SO₃ stretching), 2800–3000 cm⁻¹ (CH₂) | | ¹H NMR | 0.8 ppm (CH₃), 1.2–1.6 ppm (CH₂), 4.2 ppm (O–CH₂–) | | ¹³C NMR | 20–40 ppm (alkyl), 70–80 ppm (C–O–S) | ---`, section4: `## 4. Synthesis & Characterization ### 4.1. Chemical Synthesis #### 4.1.1. Sulfation of Alcohols **Procedure** (general): 1. **Setup** – Perform the reaction in a dry, nitrogen‐purged flask equipped with a magnetic stir bar. Maintain the temperature at 0–5 °C to control exotherm. 2. **Reagents** – Add an equimolar amount of chlorosulfonic acid (ClSO₃H) or sulfur trioxide–pyridine complex to the alcohol (e.g., dodecanol). The stoichiometry should be 1.0–1.2 equivalents to avoid excess acid. 3. **Addition** – Slowly add the sulfonating agent while keeping the temperature 2 g kg⁻¹; the compound is primarily a skin and eye irritant. - **Skin & Eye Contact** – Irritates mucous membranes. Flush with water for > 15 min. - **Inhalation** – Fine dust or aerosolized droplets can irritate the respiratory tract. Use a respirator (FFP2/FFP3) and HEPA filtration. - **Reactivity** – The sulfate group is highly acidic; contact with strong bases or reducing agents can release heat. ### 6.2. Environmental Impact - **Biodegradability** – Alkyl sulfates degrade aerobically; half‑life in sewage is `, section1: `## 1. Introduction The formula C12H22O6S represents an alkyl sulfate where a 12-carbon aliphatic chain is attached to a sulfate ester group. This type of compound is widely used in surfactant mixtures for cleaning and emulsifying. The molecular mass is ~302 g/mol for the dodecyl version and increases proportionally with longer chains. In practice, C12H22O6S is often produced in situ via a sulfonation route. ---`, // section2 is intentionally omitted section3: `## 3. Physical & Chemical Properties ### 3.1. General Features | Property | Typical Value | |---|---| | Molecular weight | 302–480 g mol⁻¹ (C12–C22) | | Log P | 6–8 (hydrophobic core) | | Boiling point | > 280 °C (decomposes) | | Solubility | Highly soluble in water (≥10 % w/v), miscible with organic solvents | | pKa | ~1 (sulfate anion) | ### 3.2. Stability * Thermally stable up to ~280 °C. Beyond that, decomposition releases SO₂ and H₂O. * Chemically stable in aqueous, neutral, and mildly alkaline media. Strong bases or reducing agents can cleave the sulfate linkage. ### 3.3. Spectroscopic Fingerprints | Spectroscopy | Key Peaks | |---|---| | IR | 1100–1200 cm⁻¹ (SO₃ stretching), 2800–3000 cm⁻¹ (CH₂) | | ¹H NMR | 0.8 ppm (CH₃), 1.2–1.6 ppm (CH₂), 4.2 ppm (O–CH₂–) | | ¹³C NMR | 20–40 ppm (alkyl), 70–80 ppm (C–O–S) | ---`, section4: `## 4. Synthesis & Characterization ### 4.1. Chemical Synthesis #### 4.1.1. Sulfation of Alcohols **Procedure** (general): 1. **Setup** – Perform the reaction in a dry, nitrogen‐purged flask equipped with a magnetic stir bar. Maintain the temperature at 0–5 °C to control exotherm. 2. **Reagents** – Add an equimolar amount of chlorosulfonic acid (ClSO₃H) or sulfur trioxide–pyridine complex to the alcohol (e.g., dodecanol). The stoichiometry should be 1.0–1.2 equivalents to avoid excess acid. 3. **Addition** – Slowly add the sulfonating agent while keeping the temperature 2 g kg⁻¹; the compound is primarily a skin and eye irritant. - **Skin & Eye Contact** – Irritates mucous membranes. Flush with water for > 15 min. - **Inhalation** – Fine dust or aerosolized droplets can irritate the respiratory tract. Use a respirator (FFP2/FFP3) and HEPA filtration. - **Reactivity** – The sulfate group is highly acidic; contact with strong bases or reducing agents can release heat. ### 6.2. Environmental Impact - **Biodegradability** – Alkyl sulfates degrade aerobically; half‑life in sewage is

Table of Contents

C19h30o5s

1. Overview

2. Representative Structures

3. Physical & Chemical Properties