115-39-9

115-39-9 structure

Name: Bromophenol Blue
Chemical Name: bromophenol blue
CAS Number: 115-39-9
Molecular Formula: C₁₉H₁₀Br₄O₅S
Molecular Weight: 669.961
Catalog: Biochemical Biochemical reagent Biological dye
Create Date: 2018-03-04 08:00:00
Modify Date: 2025-08-22 13:02:04
Bromophenol blue is an acid phthalein dye, and it is used as a tracking dye for electrophoresis. Bromophenol blue is also used as a pH indicator, with a transition range of pH 3 to 4.6[1][2].

Name	bromophenol blue
Synonyms	Bromphenol Blue Bromophenol Blue 3',3'',5',5''-Tetrabromophenolsulfonphthalein 3',3'',5',5''-Tetrabromophenolsulfonephthalein Bromphenol Blue Sultone Form a,a-Bis(3,5-dibromo-4-hydroxyphenyl)-a-hydroxy-o-toluenesulfonicAcid g-Sultone Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2,6-dibromo- 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1λ<sup>6</sup>-benzoxathiol-3-yl]phenol 4,4'-(1,1-Dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2,6-dibromophenol) 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[2,6-dibromophenol] S,S-Dioxide Bromophenol blue (BPB) EINECS 204-086-2 MFCD00005875

Description	Bromophenol blue is an acid phthalein dye, and it is used as a tracking dye for electrophoresis. Bromophenol blue is also used as a pH indicator, with a transition range of pH 3 to 4.6[1][2].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Mendoza L, et, al. Nanocellulose for gel electrophoresis. J Colloid Interface Sci. 2019 Mar 22; 540: 148-154. [2]. Dangui AZ, et, al. Preferential solvation bromophenol blue in water-alcohol binary mixture. Spectrochim Acta A Mol Biomol Spectrosc. 2018 Oct 5; 203: 333-341.

Density	2.2±0.1 g/cm3
Boiling Point	605.6±55.0 °C at 760 mmHg
Melting Point	273 °C
Molecular Formula	C₁₉H₁₀Br₄O₅S
Molecular Weight	669.961
Flash Point	320.1±31.5 °C
Exact Mass	665.698242
PSA	92.21000
LogP	6.88
Vapour Pressure	0.0±1.8 mmHg at 25°C
Index of Refraction	1.744
Storage condition	Store at RT.
Stability	Stable. Incompatible with strong oxidizing agents.

CHEMICAL NAME :: Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-, S,S-dioxide

Symbol	GHS02, GHS07, GHS08
Signal Word	Danger
Hazard Statements	H226-H312 + H332-H319-H360D
Precautionary Statements	P201-P280-P305 + P351 + P338-P308 + P313
Personal Protective Equipment	Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	T, Xn
Risk Phrases	R61
Safety Phrases	S53-S45-S24/25-S22
RIDADR	UN 2265 3/PG 3
WGK Germany	3
RTECS	SJ7453000
Hazard Class	3.0
HS Code	29349990

143-74-8

115-39-9

Literature: Inorganica Chimica Acta, , vol. 368, # 1 p. 223 - 230

143-74-8

2800-80-8

115-39-9

Literature: Chemosphere, , vol. 36, # 6 p. 1445 - 1452

135754-88-0

121-54-0

56-54-2

115-39-9

Literature: Canadian Journal of Chemistry, , vol. 69, # 6 p. 937 - 944

HS Code	2934991000
Summary	2934991000. sultones and sultams. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%