Ninhydrin
Also known as: 2,2-Dihydroxy-1H-indene-1,3(2H)-dione, 1,2,3-Indantrione monohydrate, Triketohydrindene hydrate, 2,2-Dihydroxy-1,3-indanedione, 1,2,3-Triketohydrindene monohydrate, Indane-1,2,3-trione monohydrate, Ninhydrin hydrate
Ninhydrin (CAS 485-47-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H6O4 and a molecular weight of 178.141 g/mol. Key properties include a melting point of 250 °C (dec.)(lit.), a boiling point of 449.3±45.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 239.7±25.2 °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. It is listed by 1 supplier, from 12.60 to 21.60 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 485-47-2
- Jingsj CID
- J-32664-1
- Molecular Formula
- C9H6O4
- Molecular Weight
- 178.141 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | AR 100g | ¥1,260.00 | $1.89 /gBest ¥12.60/g CNY | CN China MOQ 100g | |
In Stock | AR 25g | ¥335.00 | $2.01 /g ¥13.40/g CNY | CN China MOQ 25g | |
In Stock | ACS reagent, ≥98.0% (UV) 100g | ¥1,460.00 | $2.18 /g ¥14.60/g CNY | CN China MOQ 100g |
Physicochemical Properties
| Melting Point | 250 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 449.3±45.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 239.7±25.2 °C |
| Exact Mass | 178.026611 |
| PSA | 74.60000 |
| LogP | 1.07 |
| Vapor Pressure | 0.0±1.2 mmHg at 25°C |
| Refractive Index | 1.737 |
| Additional Property | 0.1-0.5 g/100 mL at 20 ºC |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | IC50: chromogenic analytical probe[1] |
|---|---|
| Additional Information | [1]. Omar MA, et al. Utility of ninhydrin reagent for spectrofluorimetric determination of heptaminol in human plasma.Luminescence. 2018 Sep;33(6):1107-1112. [2]. Anantharaman S, et al. Ninhydrin-sodium molybdate chromogenic analytical probe for the assay of amino acids and proteins.rSpectrochim Acta A Mol Biomol Spectrosc. 2017 Feb 15;173:897-903. |
Customs & Trade Information
| HS Code | 2915900090 |
|---|---|
| Summary | 2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives 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:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Ninhydrin?
The CAS number of Ninhydrin is 485-47-2.
What are the molecular formula and molecular weight of Ninhydrin?
Ninhydrin has molecular formula C9H6O4 and molecular weight 178.141 g/mol.
Which suppliers offer Ninhydrin?
1 supplier(s) listed; reference unit price ¥12.60–21.60 /g.
Is Ninhydrin hazardous?
Ninhydrin has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Ninhydrin?
For Ninhydrin, Upstream Products: 1,3-Indandione, Carminic Acid, Vanillin; Downstream Products: 3-methoxyisobenzofuran-1(3H)-one, Hydrindantin, D-(-)-Arabinose.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ninhydrin (CAS 485-47-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32664-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.