4,4'-Bis(diethylamino) benzophenone CAS 90-93-7

Product name: 4,4'-Bis(diethylamino) benzophenone
CAS：90-93-7
MF：C21H28N2O
MW：324.46
EINECS:202-025-4

Product Description

Product name: 4,4'-Bis(diethylamino) benzophenone

CAS：90-93-7

MF：C21H28N2O

MW：324.46

EINECS:202-025-4

Use:

1. Important intermediates of alkaline dyes,

2. Used for the production of alkaline brilliant blue B, alkaline brilliant blue R, etc.

Specifications :

4,4'-Bis(diethylamino) benzophenone Basic information
Product Name:	4,4'-Bis(diethylamino) benzophenone
CAS:	90-93-7
MF:	C21H28N2O
MW:	324.46
EINECS:	202-025-4
Mol File:	90-93-7.mol
4,4'-Bis(diethylamino) benzophenone Chemical Properties
Melting point	89-92 °C(lit.)
Boiling point	475.7±30.0 °C(Predicted)
density	1.048±0.06 g/cm3(Predicted)
Fp	151 °C
storage temp.	Store below +30°C.
pka	4.14±0.32(Predicted)
form	Crystalline Granules
color	Yellow to yellow-green
PH	4-6 (50g/l, H2O, 20℃)
Water Solubility	insoluble
λmax	352nm(THF)(lit.)
Sensitive	Light Sensitive
BRN	2148611

公司信息

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.