Ethidium bromide (CAS 1239-45-8) — formula C21H20N3.Br, molecular weight 394.3; category pharmaceutical intermediates and APIs.
Ethidium bromide (CAS 1239-45-8) is a chemical raw material in the pharmaceutical intermediates and APIs category. Its molecular formula C21H20N3.Br comprises 21 C, 20 H, 3 N, 1 Br atoms. Its molecular weight is about 394.3. Reported physicochemical data: melting point around 260-262 °C (decomposes), LogP about -1.1. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 1239-45-8 |
|---|---|
| Molecular Formula | C21H20N3.Br |
| Molecular Weight | 394.3 |
| Melting Point | 260-262 °C (decomposes) |
| LogP | -1.1 |
| Applications | determination of nucleic acids and as an antimicrobial (Trypanosoma), DNA probe |
| Category | Pharmaceutical Intermediates & APIs |
Documented applications: determination of nucleic acids and as an antimicrobial (Trypanosoma), DNA probe.
Ethidium bromide is a pharmaceutical intermediate or API compound with CAS registry number 1239-45-8 and molecular formula C21H20N3.Br (molecular weight 394.3), belonging to the pharmaceutical intermediates and APIs segment of chemical raw materials.
CAS number: 1239-45-8
Its molecular formula C21H20N3.Br comprises 21 C, 20 H, 3 N, 1 Br atoms.
Also known as: Ethidium bromide · 溴化乙锭
Category: pharmaceutical intermediates and APIs
The CAS registry number of Ethidium bromide is 1239-45-8.
Molecular formula C21H20N3.Br, molecular weight 394.3.
It is also registered under: Ethidium bromide, 溴化乙锭.
Recorded applications: determination of nucleic acids and as an antimicrobial (Trypanosoma), DNA probe.
Category: Pharmaceutical Intermediates & APIs.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Ethidium bromide (CAS 1239-45-8), compiled from public chemistry databases.
| CAS Registry Number | 1239-45-8 |
|---|---|
| PubChem CID | 14710 |
| Molecular formula | C21H20N3.Br |
| IUPAC name | 5-ethyl-6-phenylphenanthridin-5-ium-3,8-diamine bromide |
| UNII (FDA) | 059NUO2Z1L |
| Molecular Weight | 394.3 |
|---|---|
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 2 |
| Exact Mass | 393.08406 |
| Monoisotopic Mass | 393.08406 |
| Topological Polar Surface Area | 55.9 |
| Heavy Atom Count | 25 |
| Melting Point | 260-262 °C (decomposes) |
|---|---|
| Melting Point | 238-240 °C |
| Flash Point | >100 °C |
| Density | 0.34 g/cm³ |
| LogP | -1.1 |
ETHIDIUM BROMIDE; 1239-45-8; Homidium bromide; Dromilac; 3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide; EtBr; Ethydium bromide; Bromure d'homidium; Bromuro de homidio; Homidii bromidum; 2,7-Diamino-10-ethyl-9-phenylphenanthridinium bromide; 2,7-Diamino-9-phenyl-10-ethylphenanthridinium bromide; 2,7-Diamino-9-phenylphenanthridine ethobromide; DTXSID8025258; NSC-268986; RD 1572
| Reported hazard statements | H302, H330, H341, H331 (26.5%) |
|---|
H302: Harmful if swallowed [Warning Acute toxicity, oral]
H330: Fatal if inhaled [Danger Acute toxicity, inhalation]
Ethidium bromide · CAS 1239-45-8 · C21H20N3.Br. UNII 059NUO2Z1L. Melting Point: 260-262 °C (decomposes); Melting Point: 238-240 °C; Flash Point: >100 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 溴化乙锭