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1,4-Dibromopentane

1,4-Dibromopentane structure

CAS No:
626-87-9
Formula:
C5H10Br2
Chemical Name:
1,4-Dibromopentane
Synonyms:
Pentane,1,4-dibromo-;1,4-Dibromopentane;(RS)-1,4-Dibromopentane;NSC 8753;2,5-Dibromopentane
Categories:
Organic Chemistry > Hydrocarbons and Derivatives

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Description

clear colorless to light yellow-brown liquid

1,4-Dibromopentane Basic Attributes

Molecular Weight：

229.94

Exact Mass：

229.94

BRN：

605295

EC Number：

210-967-2

NSC Number：

8753

HScode：

29033919

Characteristics

PSA：

XLogP3：

2.94490

Appearance：

clear, colorless to pale yellow liquid.

Density：

1.687 g/cm³ @ Temp: 15 °C

Melting Point：

-34.4 °C

Boiling Point：

82 °C

Flash Point：

>110°C

Refractive Index：

n20/D 1.508

Water Solubility：

Insoluble in water.

Storage Conditions：

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38-36/38-22

safety instructions：

26-36-37/39

Marks：

Xi,Xn

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H315 (97.78%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 45 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

1,4-Dibromopentane Use and Manufacturing

Methods of Manufacturing

The 2-methyltetrahydrofuran is synthesized by ring-opening bromination with hydrobromic acid and sulfuric acid. First, add hydrobromic acid to the reaction pot to cool, slowly add 2-methyltetrahydrofuran and sulfuric acid in sequence with stirring, and finish adding when the temperature does not exceed 40°C. Warm up to 60°C, react for 2h, and then react at 80-85°C for 4h. After cooling, divide the bromide and wash with water to neutrality to obtain dibromopentane oil. The yield was 92.5%. The industrial product content is above 90%. Raw material consumption quota: 2-methyltetrahydrofuran (90%) 410kg/t, hydrobromic acid (≥48%) 2400kg/t.

Uses

It is mainly used as an alkylating agent in organic synthesis and as an intermediate of the antimalarial primaquine phosphate in the pharmaceutical industry.

Manufacturing Info：

Pentane, 1,4-dibromo-: INACTIVE

Computed Properties

Molecular Weight:229.94
XLogP3:2.9
Rotatable Bond Count:3
Exact Mass:229.91288
Monoisotopic Mass:227.91493
Heavy Atom Count:7
Complexity:37.1
Undefined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

n-Pentane

2-Methyltetrahydrofuran

Downstream Products

n-Pentane

1,3-Pentadiene

Recommended Suppliers of 1,4-Dibromopentane

Shaanxi Dideu Medichem Co. Ltd Contact Supplier

CN
4 YRS

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Manufactory Supplier of Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst,Chemical Materials,Chem&Pharm Intermediates,Organic Intermediates,Feed Additive

High Quality 99% Purity of 1,4-Dibromopentane CAS NO 626-87-9 ISO 9001:2005 REACH Verified Producer

CAS No.: 626-87-9

Grade: Industrial Grade

Content: 99%

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