Chromium(2+) di(2,4-cyclopentadienide)

Basic Information

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CAS Number

1271-24-5

Molecular Formula

C10H10Cr

Molecular Weight

182.18 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Melting Point

168-170 °C

Water Solubility

Insoluble in water.

SMILES

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[CH-]1C=CC=C1.[CH-]1C=CC=C1.[Cr+2]

InChI

InChI=1S/2C5H5.Cr/c2*1-2-4-5-3-1;/h2*1-5H;/q2*-1;+2

InChIKey

TYYBBNOTQFVVKN-UHFFFAOYSA-N

LogP

2.04300

Complexity

11.6

Safety Information

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Hazard Statement

H302 Harmful if swallowed
Acute toxicity, oral

H312 Harmful in contact with skin
Acute toxicity, dermal

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H332 Harmful if inhaled
Acute toxicity, inhalation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Hazard Class

Class 4.2 Class 4.2

Sensitiveness

Air & Moisture Sensitive

Synonyms & References

English

CCRIS 5974
Bis(eta5-cyclopenta-2,4-dien-1-yl)chromium
Bis(cyclopentadienyl)chromium
Bis(cyclopentadiene)chromium
Tox21_202889
TYYBBNOTQFVVKN-UHFFFAOYSA-N
Bis(eta(5)-2,4-cyclopentadien-1-yl) chromium
1271-24-5
Dicyclopentadienylchromium
Di((eta-5)-cyclopentadienyl)chromium
EINECS 215-036-4
NCGC00260435-01
Bis(cyclopentadiene)chromium(II)
NS00081215
Q418966
UNII-FI251W8B1L
FI251W8B1L
DTXSID7024615
CAS-1271-24-5
Chromium, bis(eta(5)-2,4-cyclopentadien-1-yl)
FT-0693151
DTXCID904615
J-005465
Chromium, dicyclopentadienyl-
bis(η5-cyclopenta-2,4-dien-1-yl)chromium
Bis(Cyclopentadienyl)Chromium, Sublimed
Chromocene
Chromocene (Di(cyclopentadienyl)chromium(II)
Bis(eta(5)-cyclopentadienyl)chromium

MDL Number

MFCD00013750

FAQ

What regulatory guidelines apply to Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5)?

Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5) is subject to regulation under the Globally Harmonized System (GHS) for classification and labeling of chemicals, REACH regulations in the European Union, and FDA/EPA guidelines in the USA. It is classified as a hazardous substance due to its potential to cause respiratory and skin irritation. Specific requirements include proper labeling, storage, and handling to prevent exposure and environmental release.

Are there alternatives to Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5) in synthesis?

There are alternatives to Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5) in synthesis, including other cyclopentadienyl chromium complexes, such as chromium(3+) di(2,4-cyclopentadienide). Other common reagents include transition metal complexes and non-transition metal catalysts, which can be used as substitutes depending on the specific reaction requirements and desired product characteristics.

What is the market or research trend for Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5)?

The market for Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5) is driven by its use in catalysis and organic synthesis, particularly in the production of fine chemicals and pharmaceuticals. Research trends focus on developing more efficient and environmentally friendly catalysts. Emerging trends include the exploration of alternative metal complexes and the use of computational methods to predict and optimize catalytic performance.

How should waste containing Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5) be handled?

Waste containing Chromium(2+) di(2,4-cyclopentadienide) (CAS: 1271-24-5) should be collected in appropriate closed containers and handled by trained personnel. Incineration is a common method for disposal, but professional waste disposal services should be used. Environmental precautions include ensuring proper ventilation and personal protective equipment (PPE) to prevent inhalation or skin contact. Compliance with local and national regulations is essential for safe waste management.