![Molecular structure of 1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) (CAS 43134-09-4)](/images/chem_structures_svg/190/43134-09-4.svg)
1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt)
Also known as: Squarylium dye III, bis(4-dimethylaminophenyl)squaraine, bis(N,N-dimethylanilino)squaraine, MFCD00142504, NSC 125878, 2,4-bis(4-(dimethylamino)phenyl)cyclobutane-1,3-bis(olate)
1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) (CAS 43134-09-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H20N2O2 and a molecular weight of 320.38500 g/mol. Key property: a melting point of >300 ℃(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 43134-09-4
- Jingsj CID
- J-1525139-6
- Molecular Formula
- C20H20N2O2
- Molecular Weight
- 320.38500 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >300 ℃(lit.) |
|---|---|
| Exact Mass | 320.15200 |
| PSA | 46.38000 |
| LogP | 2.61260 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2922499990 |
|---|---|
| Summary | HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt)?
The CAS number of 1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) is 43134-09-4.
What are the molecular formula and molecular weight of 1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt)?
1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) has molecular formula C20H20N2O2 and molecular weight 320.38500 g/mol.
Is 1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) hazardous?
1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) (CAS 43134-09-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1525139-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.