Bromocresol Purple CAS 115-40-2 5''-Dibromo-O-Cresolsulfonephthalein Bcp

• Customization: Available
• CAS No.: 115-40-2
• Formula: C21h16br2o5s
• Model NO.: SUREST-2
• EINECS: 204-087-8
• Aldehyde: Monoaldehyde
• Aether: Cyclic Ether
• Hydroxybenzene: Monohydric Phenol
• Ketone: Unsaturated Ketone
• Melting Point: 245 ºC
• Water Solubility: Practically Insoluble
• Shelf Life: 2 Years
• Appearance: Yellow or Pink Powder
• Stock: Available
• Transport Package: 25kg/Drum
• Specification: 99%min
• Trademark: Surest
• Origin: China
• HS Code: 2907129000
• Production Capacity: 1000 Ton Yearly

Product Description

Bromocresol Purple

Name	Bromocresol Purple
Synonyms	5',5''-Dibromo-o-cresolsulfonephthalein; BCP
Molecular Structure
Molecular Formula	C21H16Br2O5S
Molecular Weight	540.22
CAS Registry Number	115-40-2
EINECS	204-087-8

 

Form :Grey to purple or pink or brown powder

pH :   5.2-6.8, yellow to purple

Solubility :   methanol: 4 mg/mL, orange

Application(s) : diagnostic assay manufacturing ,hematology histology ,

Storage temp :  room temp

Product Parameters

 

Tests	Specification
Appearance	Pink or pinkish purple powder
Colour-changing ranges	5.2(yellow)~6.8(purple)
Maximum absorption λ1(PH 5.2),nm λ2 (PH 6.8), nm	427~431 588~590
Mass absorption coefficient,L/cm.g,dry basis α1(λ1  PH 5.2) α2(λ2  PH 6.8)	40.5~45.0 100.0~110.0
Dilute alkali solution test	Should pass
Residue on ignition(as sulphate)	≤0.1%
Loss on drying	≤0.5%

Main Uses:

 

1. Acid-base indicator, with a color change from light yellow to purplish red, and a pH value in the color change range of 5.2-6.8. Used as a reagent for thin layer chromatography to detect binary hydroxyacids and halogen ions (excluding fluorine).
2. It is also used as an extractant for the photometric determination of quaternary ammonium cations.
 

Detailed Photos

 

 

FAQ

 

FAQ
Question 1: Can I get samples?
Answer: Yes,you can get free samples of our most products,
while the courier cost will be borne by the buyers.

Question 2: What's your MOQ?
Answer: For a express delivery order,the MOQ is usually 100 g~1 kg;
for an air transport order or sea delivery order ,the MOQ is usually 25 kgs.

Question 3: What's your delivery time?
Answer:
Orders shipped by express delivery,the delivery time is usually 5~7 working days;
Orders shipped by air transport,usually around 7~10 working days;
Orders shipped by sea , usually around 2~3 working weeks.

Question 4: What are the different payment methods?
Answer: We usually accept T/T, L/C and Western Union.

Question 5: How do you treat quality complaint?
We take quality very seriously, it is one of the founding principles of our business.
 If the quality problem actually exists, we will replace with qualified goods or refund the money.