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9002-91-9

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9002-91-9 Usage

Chemical Properties

White crystalline powder

Uses

Different sources of media describe the Uses of 9002-91-9 differently. You can refer to the following data:
1. META(R) Metaldehyde is a highly effective active ingredient to control slugs and snails (molluscicide) WWW Link
2. In compressed form as a fuel instead of alcohol; molluscicide.
3. Molluscicide.

Definition

Different sources of media describe the Definition of 9002-91-9 differently. You can refer to the following data:
1. A solid compound,C4O4H4(CH3)4, formed by polymerizationof ethanal (acetaldehyde) in diluteacid solutions below 0°C. Thecompound, a tetramer of ethanal, isused in slug pellets and as a fuel forportable stoves.
2. A polymer of acetaldehyde in which n usually is 4–6.

Hazard

Flammable, dangerous fire risk. Strong irritant to skin and mucous membranes.

Carcinogenicity

There is no evidence in the literature that metaldehyde has carcinogenic potential.

Environmental Fate

Plant. When applied to citrus rinds, 50% was lost after 4.6 days for the first 33 days and an additional 25% was lost 14 days for the subsequent 26 days (Iwata et al., 1982). Chemical/Physical. Metaldehyde can be converted to acetaldehyde by heating to 150°C for 4–5 hours or by the reaction of concentrated hydrochloric acid (6 M) for a couple of minutes (Booze and Oehme, 1985).

Check Digit Verification of cas no

The CAS Registry Mumber 9002-91-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 9002-91:
(6*9)+(5*0)+(4*0)+(3*2)+(2*9)+(1*1)=79
79 % 10 = 9
So 9002-91-9 is a valid CAS Registry Number.
InChI:InChI=1/C8H16O4/c1-5-9-6(2)11-8(4)12-7(3)10-5/h5-8H,1-4H3/t5-,6-,7+,8+

9002-91-9 Well-known Company Product Price

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  • Sigma

  • (36611)  Metaldehyde  PESTANAL®, analytical standard

  • 9002-91-9

  • 36611-1G-R

  • 360.36CNY

  • Detail

9002-91-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name Metaldehyde

1.2 Other means of identification

Product number -
Other names MIFASLUG

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:9002-91-9 SDS

9002-91-9Relevant articles and documents

Photophysics of Perylene Diimide Dianions and Their Application in Photoredox Catalysis

Li, Han,Wenger, Oliver S.

supporting information, (2021/12/23)

The two-electron reduced forms of perylene diimides (PDIs) are luminescent closed-shell species whose photochemical properties seem underexplored. Our proof-of-concept study demonstrates that straightforward (single) excitation of PDI dianions with green

Binary Au–Cu Reaction Sites Decorated ZnO for Selective Methane Oxidation to C1 Oxygenates with Nearly 100% Selectivity at Room Temperature

Gong, Zhuyu,Liu, Huifen,Luo, Lei,Ma, Jiani,Tang, Junwang,Xing, Jialiang,Xu, Youxun

supporting information, p. 740 - 750 (2022/01/03)

Direct and efficient oxidation of methane to methanol and the related liquid oxygenates provides a promising pathway for sustainable chemical industry, while still remaining an ongoing challenge owing to the dilemma between methane activation and overoxidation. Here, ZnO with highly dispersed dual Au and Cu species as cocatalysts enables efficient and selective photocatalytic conversion of methane to methanol and one-carbon (C1) oxygenates using O2 as the oxidant operated at ambient temperature. The optimized AuCu–ZnO photocatalyst achieves up to 11225 μmol·g–1·h–1 of primary products (CH3OH and CH3OOH) and HCHO with a nearly 100% selectivity, resulting in a 14.1% apparent quantum yield at 365 nm, much higher than the previous best photocatalysts reported for methane conversion to oxygenates. In situ EPR and XPS disclose that Cu species serve as photoinduced electron mediators to promote O2 activation to ?OOH, and simultaneously that Au is an efficient hole acceptor to enhance H2O oxidation to ?OH, thus synergistically promoting charge separation and methane transformation. This work highlights the significances of co-modification with suitable dual cocatalysts on simultaneous regulation of activity and selectivity.

Dual utility of a single diphosphine-ruthenium complex: A precursor for new complexes and, a pre-catalyst for transfer-hydrogenation and Oppenauer oxidation

Mukherjee, Aparajita,Bhattacharya, Samaresh

, p. 15617 - 15631 (2021/05/19)

The diphosphine-ruthenium complex, [Ru(dppbz)(CO)2Cl2] (dppbz = 1,2-bis(diphenylphosphino)benzene), where the two carbonyls are mutually cis and the two chlorides are trans, has been found to serve as an efficient precursor for the synthesis of new complexes. In [Ru(dppbz)(CO)2Cl2] one of the two carbonyls undergoes facile displacement by neutral monodentate ligands (L) to afford complexes of the type [Ru(dppbz)(CO)(L)Cl2] (L = acetonitrile, 4-picoline and dimethyl sulfoxide). Both the carbonyls in [Ru(dppbz)(CO)2Cl2] are displaced on reaction with another equivalent of dppbz to afford [Ru(dppbz)2Cl2]. The two carbonyls and the two chlorides in [Ru(dppbz)(CO)2Cl2] could be displaced together by chelating mono-anionic bidentate ligands, viz. anions derived from 8-hydroxyquinoline (Hq) and 2-picolinic acid (Hpic) via loss of a proton, to afford the mixed-tris complexes [Ru(dppbz)(q)2] and [Ru(dppbz)(pic)2], respectively. The molecular structures of four selected complexes, viz. [Ru(dppbz)(CO)(dmso)Cl2], [Ru(dppbz)2Cl2], [Ru(dppbz)(q)2] and [Ru(dppbz)(pic)2], have been determined by X-ray crystallography. In dichloromethane solution, all the complexes show intense absorptions in the visible and ultraviolet regions. Cyclic voltammetry on the complexes shows redox responses within 0.71 to -1.24 V vs. SCE. [Ru(dppbz)(CO)2Cl2] has been found to serve as an excellent pre-catalyst for catalytic transfer-hydrogenation and Oppenauer oxidation.

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