Hematoxylin

苏木精

Also known as: (+)-Haematoxylin, Natural Black 1, C.I. 75290, Hydroxybrazilin, Haematoxylin, Hematoxylin Hydrate, Homaeoxylin

Hematoxylin (CAS 517-28-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H14O6 and a molecular weight of 302.279 g/mol. It is also known as (+)-Haematoxylin, Natural Black 1 and C.I. 75290. Key properties include a melting point of 200 °C (dec.)(lit.), a boiling point of 579.9±50.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 304.5±30.1 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 517-28-2
Jingsj CID: J-1993546-7
Molecular Formula: C₁₆H₁₄O₆
Chinese Name: 苏木精
Molecular Weight: 302.279 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	200 °C (dec.)(lit.)
Boiling Point	579.9±50.0 °C at 760 mmHg
Density	1.7±0.1 g/cm3
Flash Point	304.5±30.1 °C
Exact Mass	302.079041
PSA	110.38000
LogP	0.51
Vapor Pressure	0.0±1.7 mmHg at 25°C
Refractive Index	1.810

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information	[1]. EF Kingston, et al. Vascular invasion is underrecognized in colorectal cancer using conventional hematoxylin and eosin staining. 《Diseases of the Colon & Rectum》, 2007, 50(11):1867-1872 [2]. JE Grilley-Olson, et al. Validation of interobserver agreement in lung cancer assessment: hematoxylin-eosin diagnostic reproducibility for non-small cell lung cancer: the 2004 World Health Organization classification and therapeutically relevant subsets. [3]. HR Zare, et al. Simultaneous determination of ascorbic acid, adrenaline and uric acid at a hematoxylin multi-wall carbon nanotube modified glassy carbon electrode. Sensors & Actuators B Chemical, 2010, 143(2):666-672

Additional Information

[1]. EF Kingston, et al. Vascular invasion is underrecognized in colorectal cancer using conventional hematoxylin and eosin staining. 《Diseases of the Colon & Rectum》, 2007, 50(11):1867-1872 [2]. JE Grilley-Olson, et al. Validation of interobserver agreement in lung cancer assessment: hematoxylin-eosin diagnostic reproducibility for non-small cell lung cancer: the 2004 World Health Organization classification and therapeutically relevant subsets. [3]. HR Zare, et al. Simultaneous determination of ascorbic acid, adrenaline and uric acid at a hematoxylin multi-wall carbon nanotube modified glassy carbon electrode. Sensors & Actuators B Chemical, 2010, 143(2):666-672

Customs & Trade Information

HS Code	2906299090
Summary	2906299090 other aromatic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Hematoxylin?

The CAS number of Hematoxylin is 517-28-2.

What are the molecular formula and molecular weight of Hematoxylin?

Hematoxylin has molecular formula C16H14O6 and molecular weight 302.279 g/mol.

Is Hematoxylin hazardous?

Hematoxylin has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Hematoxylin (CAS 517-28-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993546-7 (accessed 2026-10-29).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.