Eosin B - ≥90% , CAS No.548-24-3

CAS: 548-24-3 Cat. No.: E100232 분자식: C20H6N2O9Br2Na2 분자량: 624.06 Beilstein Registry Number: 4121964 EC 번호: 208-943-1 PubChem CID: 26697441
주문 가능
GRADE & PURITY ≥90%
Synonyms
4′,5′-Dibromo-2′,7′-dinitrofluorescein disodium salt Acid Red 91 | Eosin bluish | Eosin Scarlet | Saffrosine Imperial Red | C.I. 45400 | 4,5-Dibromo-2,7-dinitrofluorescein disodium salt
Storage
Room temperature
Shipped In
Normal
★
Size
USA
독일 (EU)*
Price
Qty
5g
E100232-5g
9 재고 있음
—
US$16.90
25g
E100232-25g
7 재고 있음
—
US$61.90
100g
E100232-100g
2 재고 있음
—
US$175.90
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥90% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

개요

Eosin B is a fluorescent red dye that is used in microscopy to visualise cytoplasm and proteins like collagen.
Eosin B is an adsorption and fluorescent indicator in microscopy.

Specifications

동의어
4′,5′-Dibromo-2′,7′-dinitrofluorescein disodium salt Acid Red 91 | Eosin bluish | Eosin Scarlet | Saffrosine Imperial Red | C.I. 45400 | 4,5-Dibromo-2,7-dinitrofluorescein disodium salt
사양 및 순도
≥90%
생화학 및 생리적 메커니즘
Eosin B is a xanthene dye and is also referred to as eosin bluish or erythrosin B. It is used in the Harris stain for Negri bodies. Eosin B is also used in Mayer’s Hemalum as a counterstain for collagen. Eosin B-Azure A are used together for the staining
보관 조건
Room temperature
배송
Normal
순수함
≥90%
이름과 식별자
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488200811
정식 스마일
[Na+].[Na+].[O-][N+](=O)c1cc2c(c3ccccc3C(=O)[O-])c3cc([N+](=O)[O-])c([O-])c(Br)c3oc2c(Br)c1=O
WGK 독일
3
PubChem CID
26697441
분자량
624.06
Beilstein
4121964

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

인증서(CoA, COO, BSE/TSE 및 분석 차트)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

10 results found

Lot NumberCertificate Type날짜항목
F2629015Certificate of AnalysisJul 06, 2026 E100232
F2229040Certificate of AnalysisApr 03, 2026 E100232
F2229044Certificate of AnalysisApr 03, 2026 E100232
F2229045Certificate of AnalysisApr 03, 2026 E100232
G2109225Certificate of AnalysisApr 03, 2025 E100232
G2109226Certificate of AnalysisApr 03, 2025 E100232
A2303416Certificate of AnalysisJan 14, 2023 E100232
H2211170Certificate of AnalysisJul 29, 2022 E100232
H2211171Certificate of AnalysisJul 29, 2022 E100232
D2310289Certificate of AnalysisMay 30, 2022 E100232
화학 및 물리적 특성
용해성Soluble in water (390 g/L at 20°C), and ethanol.
감도Moisture sensitive.
자주 묻는 질문과 기사
Citations of This Product
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