ChemicalBook > CAS DataBase List > Chromocene

Chromocene

Product Name: Chromocene
CAS No.: 1271-24-5
Chemical Name: Chromocene
Synonyms: CHROMOCENE;Chromocene,95%;Bis(cyclopentadienyl)chrom;dicyclopentadienyl-chromiu;dicyclopentadienylchromium;bis(cyclopentadiene)chromium;Bis(cyclopentadienyl)cadmium;BIS(CYCLOPENTADIENYL)CHROMIUM;di-pi-cyclopentadienyl-chromiu;Chromocene ISO 9001：2015 REACH
CBNumber: CB8708085
Molecular Formula: C10H10Cr10*
Formula Weight: 182.18
MOL File: 1271-24-5.mol

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Chromocene Property

Melting point:: 168-170 °C(lit.)
storage temp.: Store below +30°C.
form: crystal
color: scarlet
Water Solubility: Insoluble in water.
Sensitive: Air & Moisture Sensitive
NIST Chemistry Reference: Bis(«eta»5-cyclopentadienyl) chromium(1271-24-5)
EPA Substance Registry System: Chromocene (1271-24-5)

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Safety

Hazard Codes: Xn,Xi
Risk Statements: 20/21/22-36/37/38
Safety Statements: 26-37/39
RIDADR: 1325
WGK Germany: 3
RTECS: GB7600000
TSCA: Yes
HazardClass: 4.2
PackingGroup: I
HS Code: 29319090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 381004
Product name: Bis(cyclopentadienyl)chromium(II)
Purity: 95%
Packaging: 1g
Price: $123.23
Updated: 2025/07/31

Strem Chemicals

Product number: 24-0135
Product name: Bis(cyclopentadienyl)chromium, min. 95%, sublimed (Chromocene)
Packaging: 1g
Price: $115
Updated: 2024/03/01

Strem Chemicals

Product number: 24-0135
Product name: Bis(cyclopentadienyl)chromium, min. 95%, sublimed (Chromocene)
Packaging: 5g
Price: $457
Updated: 2024/03/01

Biosynth Carbosynth

Product number: FB167625
Product name: Bis(cyclopentadienyl)chromium(II)
Packaging: 100mg
Price: $60
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FB167625
Product name: Bis(cyclopentadienyl)chromium(II)
Packaging: 250mg
Price: $125
Updated: 2021/12/16

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Chromocene Chemical Properties,Usage,Production

Chemical Properties

bordeaux crystalline powder

Uses

Provides catalyst for ethylene polymerization. A precursor to other chromium(II) compounds.

General Description

Red needles or reddish-purple solid.

Air & Water Reactions

Chromocene is very sensitive to exposure to air and moisture (decomposition is not vigorous). Decomposes in water .

Reactivity Profile

Chromocene reacts with water and alcohols. . It's reaction with alcohols produces pyrophoric metal alkoxides (dialkoxychromium and cyclopentadiene).

Fire Hazard

Literature sources indicate that Chromocene is flammable.

reaction suitability

core: chromium
reagent type: catalyst

Purification Methods

Chromocene forms pyrophoric red crystals on sublimation at 50o/0.1mm followed by resublimation at 75-90o/0.1mm. Although it is stable at least to 300o, it is readily oxidised in air, and effervesces slowly in H2O to give cyclopentadiene. All operations should be carried out in a dry box. It decomposes in CCl4 or CS2, and for IR even grinding with nujol, KBr or KI causes some decomposition. [Wilkinson et al. J Inorg Nucl Chem 95 109 1956, Wilkinson J Am Chem Soc 76 209 1954, Beilstein 16 IV 1774.]

Chromocene Preparation Products And Raw materials

Raw materials

Dicyclopentadiene Toluene Sodium Tetrahydrofuran Chromium(III) chloride

Preparation Products

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Chromocene Suppliers

China 59 Finland 1 Germany 6 Japan 3 Russia 1 Switzerland 2 Ukraine 1 United Kingdom 3 United States 18 Global 94

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View Lastest Price from Chromocene manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: Chromocene 1271-24-5
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98
Supply Ability: KG
Release date: 2025-09-17

Shaanxi Dideu New Materials Co. Ltd

Product: Chromocene 1271-24-5
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98.0%
Supply Ability: 10000KGS
Release date: 2025-02-25

Shaanxi Dideu Medichem Co. Ltd

Product: Chromocene 1271-24-5
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%
Supply Ability: 10000KG
Release date: 2024-08-09

1271-24-5, ChromoceneRelated Search:

Tetrahydrocyclopentadiene Ferrocenecarboxylic acid Ferrocenecarboxaldehyde Acetylferrocene Chromium(VI) oxide chromium dioxide METHYLCYCLOPENTADIENE DIMER Tetraphenylcyclopentadienone Titanocene dichloride Aminoferrocene 1,3-Cyclopentadiene Ferrocene Dicyclopentadiene Hexachlorocyclopentadiene Chromium ETHYNYLFERROCENE BIS(CYCLOPENTADIENYL)MANGANESE beryllium dicyclopenta-2,4-dienide

BIS(CYCLOPENTADIENYL)CHROMIUM

BIS(CYCLOPENTADIENYL)CHROMIUM(II)

CHROMOCENE

Bis(cyclopentadienyl)chromium 5% In Toluene

Bis(cyclopentadienyl)chrom

BIS-(CYCLOPENTADIENYL)CHROMIUM(II) (CHROMOCENE)

bis(cyclopentadiene)chromium

bis(cyclopentadiene)chromium(ii)

chromium,bis(η5-2,4-cyclopentadien-1-yl)-

di((eta-5)-cyclopentadienyl)chromium

Di(η5-cyclopentadienyl)chromium

dicyclopentadienyl-chromiu

dicyclopentadienylchromium

di-pi-cyclopentadienyl-chromiu

Bis(cyclopentadienyl)chromium, 97+%, sublimed (Chromocene)

Bis(cyclopentadienyl)chromium, 5% in toluene ,0%

Bis(cyclopentadienyl)chromium ,95%

Bis(cyclopentadienyl)chromium,min.95%,sublimed(Chromocene)

bis(cyclopentadienyl)chromium, sublimed

Bis(η5-cyclopentadienyl)chromium

BIS(CYCLOPENTADIENYL)CHROMIUM , SUBLIMED (CHROMOCENE)

Bis(ethylcyclopentadienyl)chromium 98%

BIS(ETHYLCYCLOPENTADIENYL)CHROMIUM98%

Bis(cyclopentadienyl)chromium, sublimed, 97+%

Chromocene, Di(cyclopentadienyl)chromium(II)

bis(eta5-cyclopenta-2,4-dien-1-yl)chromium

Bis(cyclopentadienyl)chromium, (Chromocene)

Bis(eta(5)-cyclopentadienyl)chromium

Chromocene,95%

bis(η5-cyclopenta-2,4-dien-1-yl)chromium

Di(cyclopentadienyl)chromium(II)

Bis(cyclopentadienyl)chromium 95% 5% in toluene

Bis(cyclopentadienyl)chromium 95% 5% in hexane

Bis(cyclopentadienyl)chroMiuM,95% subliMed (ChroMocene)

Bis(cyclopentadienyl)cadmium

Bis(cyclopentadienyl) chromium 8% In Toluene

Chromocene ISO 9001：2015 REACH

1271-24-5

C5H52Cr

CrC5H52

C10H10Cr

Catalysis and Inorganic Chemistry

Organometallics

metallocene

metallo-organic compound