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4,4'-Dimethoxytrityl chloride (DMT-Cl), 100 g

≥98 %, for synthesis
Examples of effect: Damage metals and burn body tissues; may cause serious eye damage. Safety: Avoid contact; wear safety spectacles and gloves. In the event of contact with eyes and skin, rinse with water.
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
Examples of effect: Are harmful to aquatic organisms, toxic or highly toxic, acute or with long-term effects. Safety: To be disposed of as hazardous waste only, do not allow into the environment under any circumstances.
i causes severe skin burns and eye damage, may cause an allergic skin reaction, toxic to aquatic life with long lasting effects
P261 P273 P280 P303+P361+P353 P305+P351+P338 P310
i avoid breathing dust, avoid release to the environment, wear protective gloves/protective clothing/eye protection/face protection, IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing, immediately call a POISON CENTER/doctor
Pack Qty.
Chloro-4,4'-dimethoxytriphenylmethane, DMT-Cl, 4,4'-Dimethoxytriphenylmethyl chloride
Empirical formula C21H19ClO2
Molar mass (M) 338,83 g/mol
Melting point (mp) 125 °C
CAS No. 40615-36-9
EG-Nr. 255-002-6
UN-Nr. 1759

Protective group reagent

€256.95/Pack Qty. 

excl. VAT. | 100 g per Pack Qty.

Art. No. 9671.4

In production
from 6 Pack Qty. €244.10/Pack Qty.
from 24 Pack Qty. €231.26/Pack Qty.
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Product details

4,4'-Dimethoxytrityl chloride (DMT-Cl) ≥98 %, for synthesis

Technical Information
Removal with TFA 
Protecting group (short name) Dimethoxytrityl (DMT) 
4,4'-Dimethoxytrityl chloride (DMT-Cl)
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Art. No. Pack Qty. Pack. Price Quantity
9671.1 5 g glass


9671.2 25 g glass


9671.3 50 g glass


9671.4 100 g glass


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Downloads / MSDS

General information

Protecting Groups

Today, protecting groups have become an important tool in the multistep, organic synthesis of complex compounds. The task of a protecting group is to protect a functional group from undesirable reactions with other functional groups. Then the protecting group should be cleaved under as mild conditions as possible. Good protecting groups should be specific, highly selective and both introduceable and cleavable in high yields, and stable under as many reaction conditions as possible.

Certificates of Analysis

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The following analysis certificates have been found:

Type analysis

Appearancelight pink coloured powder
Assay (HPLC)≥98,0 %
Loss on drying≤0,5 %
Melting range120,0-127,0 °C