Molekula
n-Heneicosane
n-Heneicosane is a straight-chain alkane with 21 carbon atoms, used as a standard reference compound in analytical chemistry and as a component in calibration standards and lubricants. It has a CAS number of 629-94-7, a molecular formula of CH3(CH2)19CH3, and a molecular weight of 296.57 g/mol. It is stable at ambient storage conditions and carries no signal word. Molekula supplies n-Heneicosane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
n-Heneicosane is a straight-chain alkane with 21 carbon atoms, used as a standard reference compound in analytical chemistry and as a component in calibration standards and lubricants. It has a CAS number of 629-94-7, a molecular formula of CH3(CH2)19CH3, and a molecular weight of 296.57 g/mol. It is stable at ambient storage conditions and carries no signal word. Molekula supplies n-Heneicosane from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | white to off white powder |
| Identification | Conforms to reference |
| Purity | ≥97% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 113 C |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90033301 |
| CAS Number | 629-94-7 |
| Molecular Formula | CH3(CH2)19CH3 |
| Molecular Weight | 296.57 |
| SMILES | CCCCCCCCCCCCCCCCCCCCC |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29011000 |
| Tariff Code | 2901100000 |
Safety & GHS
For research and industrial use only
Documents
Safety Data Sheets (SDS)
Available in PT, IT, FR, ES, DE, EN.
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PT - (90033301) N-HENEICOSANE [629-94-7].pdf
SDS · PT · 168 KB
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IT - (90033301) N-HENEICOSANE [629-94-7].pdf
SDS · IT · 163 KB
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FR - (90033301) N-HENEICOSANE [629-94-7].pdf
SDS · FR · 168 KB
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ES - (90033301) N-HENEICOSANE [629-94-7].pdf
SDS · ES · 167 KB
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DE - (90033301) N-HENEICOSANE [629-94-7].pdf
SDS · DE · 167 KB
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EN - (90033301) N-HENEICOSANE [629-94-7].pdf
SDS · EN · 165 KB
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is n-Heneicosane used for?
n-Heneicosane is primarily used as a reference standard in analytical chemistry and as a component in calibration mixtures for gas chromatography.
What is the chemical formula and molecular weight of n-Heneicosane?
The formula is CH3(CH2)19CH3 with a molecular weight of 296.57 g/mol.
How should n-Heneicosane be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade is available for n-Heneicosane?
Available in analytical grade, suitable for laboratory and calibration purposes.
Can Molekula supply n-Heneicosane in bulk?
Yes, Molekula can supply n-Heneicosane in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of n-Heneicosane?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.