alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol
CAS 561-41-1
Cat. no. CWLT600634 Formula C24H29N3O
MW 375.51
In stock
![Chemical structure of alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol, CAS 561-41-1](/assets/structures/CWLT600634.webp)
alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol is a triarylmethane derivative related to the violet triphenylmethane colorants. The molecule is the carbinol form of the chromophore, meaning the central carbon carries a hydroxyl group rather than forming the coloured quinoid cation, which makes it relevant both as a dye intermediate and as a substance that may be encountered during purity or migration testing of coloured materials. Laboratories use such a standard for LC or LC-MS method development and validation, calibration, identification of the carbinol peak in dye samples, and confirmation of composition when colourant purity is assessed. Supplied as a very dark blue to very dark solid with the formula C24H29N3O and a molecular weight of 375.51, it is stored at -20 °C ± 5 °C and shipped with ice packs. Pack sizes of 1 mg, 2.5 mg and 25 mg are available. Please enquire for documentation or a quotation.
Also known as
dimethylamino; methylamino. Further pharmacopoeial and trivial names are recorded on the certificate of analysis.
Pack sizes and lead time
| Pack size | Availability | Quote |
|---|---|---|
| 1 mg | In stock | |
| 2.5 mg | 35 days | |
| 25 mg | 35 days |
Content and purity for each pack size are stated per lot on the certificate of
analysis. Prices are quoted per enquiry so that pack size, documentation and shipping requirements
can be confirmed together — no price is published on this site.
What the documents contain
- Certificate of analysis — issued per lot: catalogue and lot number, the value assigned to the material and the analytical basis for it.
- Safety data sheet — supplied for the catalogue item, and the basis for the transport classification used on the shipment.
- Storage and shipping conditions for this item: -20℃±5℃, Shipping with Ice Packs.
Frequently asked questions
Is a certificate of analysis (COA) available for alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol?
Yes. A batch-specific COA and the MSDS are issued for every lot of alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol (catalogue number CWLT600634). Use the COA link on this page, or email [email protected] with the lot number printed on your label and we will send the matching document.
What pack sizes and lead times are offered?
Pack sizes 1 mg are held in stock and typically ship within 1–2 working days Other sizes (2.5 mg, 25 mg) are quoted with a lead time of approximately 35 days.
How is the purity of alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol documented?
Purity is determined per batch and stated on the COA together with the analytical data used for its assignment. If your method requires a specific grade or a particular pharmacopoeial naming, tell us the requirement when you enquire and we will confirm suitability.
Can you supply a larger quantity or a custom synthesis?
Yes. Quantities above the listed pack sizes are quoted on request, and custom synthesis or isolation from related starting materials can be discussed for compounds not held in stock. Contact [email protected] with the target quantity and required delivery date.
How is alpha,alpha-Bis[4-(dimethylamino)phenyl]-4-(methylamino)-benzenemethanol shipped?
Shipping conditions for this item: Shipping with Ice Packs. Shipments are packed to maintain the specified storage condition, and the SDS is provided for transport classification.
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