Molekula
4,4'-Dimethoxytritylchloride (DMT-Cl)
4,4'-Dimethoxytrityl chloride (DMT-Cl) is a key reagent used in nucleic acid synthesis for the protection of hydroxyl groups during solid-phase oligonucleotide assembly. It is a white to pale yellow solid with a molecular formula of C21H19ClO2 and a molecular weight of 338.83 g/mol. CAS number: 40615-36-9. Store at ambient temperature. Signal word: Warning. Molekula supplies 4,4'-Dimethoxytrityl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
4,4'-Dimethoxytrityl chloride (DMT-Cl) is a key reagent used in nucleic acid synthesis for the protection of hydroxyl groups during solid-phase oligonucleotide assembly. It is a white to pale yellow solid with a molecular formula of C21H19ClO2 and a molecular weight of 338.83 g/mol. CAS number: 40615-36-9. Store at ambient temperature. Signal word: Warning. Molekula supplies 4,4'-Dimethoxytrityl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Light pink powder |
| Melting Point | 120 - 125 °C |
| Loss on Drying | ≤ 1.0% |
| Purity HPLC | ≥ 99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Shelf Life | 48 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 40615-36-9 |
| Molecular Formula | C21H19ClO2 |
| Molecular Weight | 338.83 |
| SMILES | COC1=CC=C(C=C1)C(C2=CC=CC=C2)(C3=CC=C(C=C3)OC)Cl |
| EC / UN Number | 3261 |
| REACH Code | Y110 |
| HTS Code | 2909306000 |
| Tariff Code | 2909309090 |
Safety & GHS
-
Explosive
GHS01
-
Compressed Gas
GHS04
-
Toxic
GHS06
Hazard statements
- EUH029 Contact with water liberates toxic gas
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 4,4'-Dimethoxytrityl chloride (DMT-Cl) used for?
DMT-Cl is primarily used as a protecting group for the 5'-hydroxyl group in oligonucleotide synthesis.
What is the chemical formula and molecular weight of DMT-Cl?
The formula is C21H19ClO2 with a molecular weight of 338.83 g/mol.
How should DMT-Cl be stored?
DMT-Cl should be stored at ambient temperature, protected from moisture and light.
What grade of DMT-Cl does Molekula supply?
Molekula supplies DMT-Cl in high-purity grade suitable for nucleic acid synthesis.
Can Molekula supply DMT-Cl in bulk quantities?
Yes, Molekula can supply DMT-Cl in bulk quantities—please contact us for custom order details.
What documentation comes with a DMT-Cl order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.