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Acenaphthylene, 1-bromo- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 54736-49-1 Structure
  • Basic information

    1. Product Name: Acenaphthylene, 1-bromo-
    2. Synonyms: bromoacenaphthylene;1-bromo-acenaphthylene;1-Brom-acenaphthylen;
    3. CAS NO:54736-49-1
    4. Molecular Formula: C12H7Br
    5. Molecular Weight: 231.092
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 54736-49-1.mol
    9. Article Data: 3
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: Acenaphthylene, 1-bromo-(CAS DataBase Reference)
    10. NIST Chemistry Reference: Acenaphthylene, 1-bromo-(54736-49-1)
    11. EPA Substance Registry System: Acenaphthylene, 1-bromo-(54736-49-1)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 54736-49-1(Hazardous Substances Data)

54736-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54736-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,7,3 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54736-49:
(7*5)+(6*4)+(5*7)+(4*3)+(3*6)+(2*4)+(1*9)=141
141 % 10 = 1
So 54736-49-1 is a valid CAS Registry Number.

54736-49-1SDS

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 1-bromoacenaphthylene

1.2 Other means of identification

Product number -
Other names bromoacenaphthylene

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:54736-49-1 SDS

54736-49-1Relevant articles and documents

Irreversible E1cb Mechanism in the syn Eliminations from 1,2-Dihalogenoacenaphthenes Promoted by Potassium t-Butoxide in t-Butyl Alcohol

Baciocchi, Enrico,Ruzziconi, Renzo,Sebastiani, Giovanni V.

, p. 807 - 808 (1980)

The lack of a significant leaving group effect and the preferential departure of the "poorer" leaving group suggest an irreversible E1cb mechanism for the title reactions.

Ramberg-Baecklund Reaction of 1,3-Dibromo-1H,3H-naphthothiopyran 2,2-Dioxide. Formation of Acenaphthyne Intermediate

Nakayama, Juzo,Ohshima, Etsuo,Ishii, Akihiko,Hoshino, Masamatsu

, p. 60 - 65 (2007/10/02)

Radical bromination of 1H,3H-naphthothiopyran 2,2-dioxide (15) gave the corresponding monobromo sulfone 16 (48percent), dibromo sulfone 12 (43percent; cis/trans = 64/36), and tribromo sulfone 17 (5percent).Ramberg-Baecklund reaction of 12 was investigated under a variety of coditions with expectation of the formation of thiirene dioxide 11 from which generation of acenaphthyne (5) would be expected both thermally and photochemically.Observed characteristic features of the reaction are as follows: (i) the use of triethylamine as base yielded 1-bromo-acenaphthylene (20; 39percent) and debrominated products 15 (5percent) and 16 (9percent); (ii) the use of sodium methoxide as base afforded decacyclene (3) surprisingly, though in a trace amount, in addition to 20 (75percent) and acenaphthylene (18; 9percent); (iii) the use of potassium tert-butoxide as base gave an improved yield of 3 (5percent) along with 20 (36percent) and 18 (27percent).The formation of 3 may best be rationalized by assuming the generation of acenaphthyne intermediate 5 from 11 by loss of sulfur dioxide.

Concerted and Stepwise Mechanisms in the Eliminations from 1,2-Dihalogenoacenaphthenes Promoted by Potassium tert-Butoxide and Potassium Ethoxide in the Corresponding Alcohols

Baciocchi, Enrico,Ruzziconi, Renzo,Sebastiani, Giovanni Vittorio

, p. 3237 - 3241 (2007/10/02)

Anti and syn eliminations from cis- and trans-dihalogenoacenaphthenes, respectively, have been investigated in t-BuOK-t-BuOH and EtOK-EtOH.The leaving group ability order for the syn eliminations in t-BuOK-t-BuOH is F > Cl ca.Br, which suggests an (E1cB)I mechanism.Also consistent with this mechanism is the observation that from trans-1-chloro-2-fluoroacenaphthene only HF is eliminated.In EtOK-EtOH the order of leaving group ability for the syn eliminations is Br > Cl > F, which might suggest an E2 mechanism; however, the leaving group effects are very small, anda stepwise mechanism cannot be excluded.The anti eliminations from the cis-dihalogenoacenaphthenes exhibit a substantial leaving group effect; on this basis and also on considering the β-halogen effect on the rate of elimination, a concerted mechanism is suggested.

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