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Thionyl bromide

CAS No.
507-16-4
Chemical Name:
Thionyl bromide
Synonyms
SOBr2;Thionl bromide;THIONYL BROMIDE;Dibromo sulfoxide;thionyl dibromide;Sulfinyl dibromide;Thionylbromide,97%;Thionyl broMide 97%;Sulfuroxy dibromide;sulfur bromide oxide
CBNumber:
CB5108732
Molecular Formula:
Br2OS
Lewis structure
_sobr2 lewis structure
Molecular Weight:
207.87
MDL Number:
MFCD00011448
MOL File:
507-16-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-08-25 20:17:46

Thionyl bromide Properties

Melting point -52 °C (lit.)
Boiling point 48 °C/20 mmHg (lit.)
Density 2.683 g/mL at 25 °C (lit.)
vapor pressure 10 mm Hg ( 31 °C)
refractive index n20/D 1.675(lit.)
Flash point 156°C
storage temp. 2-8°C
solubility Miscible with benzene, toluene and ether.
form yellow liquid
Specific Gravity 2.683
color yellow liquid
Water Solubility hydrolyzed by H2O; miscible with benzene, chloroform, CCl4 [MER06]
Sensitive Moisture & Light Sensitive
Merck 14,9347
Dielectric constant 13.0(20℃)
InChI 1S/Br2OS/c1-4(2)3
InChIKey HFRXJVQOXRXOPP-UHFFFAOYSA-N
SMILES BrS(Br)=O
CAS DataBase Reference 507-16-4(CAS DataBase Reference)
FDA UNII N6CU78B13T
NIST Chemistry Reference Thionyl bromide(507-16-4)
EPA Substance Registry System Thionyl bromide (507-16-4)
UNSPSC Code 12352101
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H312+H332-H314
Precautionary statements  P261-P271-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
PPE Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Hazard Codes  C
Risk Statements  14-20/21-34
Safety Statements  26-36/37/39-45
RIDADR  UN 3264 8/PG 1
WGK Germany  3
8
TSCA  TSCA listed
HazardClass  8
PackingGroup  II
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Acute Tox. 4 Dermal
Skin Corr. 1B
Excepted Quantities Not Permitted as Excepted Quantity
NFPA 704
0
3 1
W

Thionyl bromide price More Price(11)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 251259 Thionyl bromide 97% 507-16-4 25g $80 2026-04-30 Buy
Sigma-Aldrich 251259 Thionyl bromide 97% 507-16-4 100g $206 2026-04-30 Buy
Chem-Impex 36560 Thionyl bromide ≥97%(Assaybytitration) 507-16-4 25G $84.1 2026-05-19 Buy
Chem-Impex 36560 Thionyl bromide ≥97%(Assaybytitration) 507-16-4 100G $216 2026-05-19 Buy
Oakwood 099917 Thionyl bromide 507-16-4 5g $15 2021-12-16 Buy
Product number Packaging Price Buy
251259 25g $80 Buy
251259 100g $206 Buy
36560 25G $84.1 Buy
36560 100G $216 Buy
099917 5g $15 Buy

Thionyl bromide Chemical Properties, Uses, Production

Chemical Properties

Orange-yellow liquid. On prolonged standing, slowly decomposes into SO2, Br2 and S2Br2 and turns reddish; very sensitive to moisture. M.p. -49.5°C. Its thermal stability is poor and therefore SOBr2 can be distilled only in vacuum.

Uses

Thionyl Bromide is used in the preparation of carbon nanotube-phosphorylcholine polymer composite used in blood condition.

Preparation

Reaction of SO2 with Br2 in the presence of PCl3: 64 g. of SO2 is added to a mixture of 138 g. of PCl3 and 160 g. of Br2 , while the reactor is cooled. The yield, after fractional distillation, is 180 g. of SOBr2.

Hazard

Extremely destructive to tissue of mucous membranes, upper respiratory tract, eyes, and skin. Reacts vigorously with acetone to form a lachrymator. Should be handled in a fume hood.

storage

less stable than thionyl chloride and will slowly decompose, even in a stoppered container. Stable if kept dry, but reacts violently with water.

7446-09-5
7789-69-7
507-16-4
Synthesis of Thionyl bromide from Sulfur dioxide and Phosphorus pentabromide
Global Suppliers ( 81)
Supplier Tel Email Country ProdList Advantage
Chongqing Nosen Pharmaceutical Co., Ltd 15310618205 89530754@qq.com China 114 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
Sinopharm Chemical Reagent Co,Ltd. 86-21-63210123 sj_scrc@sinopharm.com China 9791 79
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 13458535857 cdhxsj@163.com China 13323 58
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55

View Latest Price from Thionyl bromide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Thionyl bromide pictures 2026-06-30 Thionyl bromide
507-16-4
1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd
Thionyl bromide pictures 2020-01-08 Thionyl bromide
507-16-4
$1.00 1IU 99.0% 100kg Career Henan Chemical Co
THIONYL BROMIDE thionyl bromide Br2OS thionyl dibromide Thionl bromide Thionylbromide,97% sulfur bromide oxide Sulfuroxy dibromide Dibromo sulfoxide Sulfinyl dibromide Sulfur(IV) oxybromide Thionyl broMide 97% sulfurooyl dibromide SOBr2 507-16-4 Br2OS Synthetic Reagents Bromination C-X Bond Formation (Halogen) Bromination C-X Bond Formation (Halogen) Synthetic Reagents