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Shanghai Sunwise Chemical Co., Ltd.

Since 2020

Adhering to a strict way of doing things right, honoring every commitment, and continuing to create values for customers are SunwiseChem's fundamental principles and spirits. Throughout the development over ten years, SunwiseChem has been managing the ent

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CRESOL RED

Introduction:CRESOL RED

Product Description

Product Name: CRESOL RED

Identification
Synonyms Cresol red (0.1% in ca. 20% ethanol); o-Cresolsulphonephthalein; o-Cresol Red; o-Cresolsulfonphthalein;4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2-methylphenol);
2-[(Z)-(4-hydroxy-3-methylphenyl)(3-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonic acid

Molecular Formula C21H17NaO5S
Molecular Weight 404.41
CAS Number 1733-12-6
EINECS/ELINCS
Structure

Properties
Appearance Red-brown crystalline powder
Stability stable under ordinary conditions

Specification

Item	Specification
PH CHANGE RANGE	6.5(brown)-8.5(purple)
Maximum absorption wavelength	λ1(PH6.5)……432~436
	λ1(PH6.5)……571~574
Mass absorption coefficient	α1(λ1,PH6.5,dry basis)…49~67
	α1(λ2,PH8.5,dry basis)…100~132
Ethanol solubility test	Pass test
SULFATED ASH	0.2% max
LOSS ON DRYING	3.0% max

Application
1. PH indicator;
2. Cresol Red can be used in many common molecular biology reactions in place of other loading dyes. Cresol Red does not inhibit Taq polymerase to the same degree as other common loading dyes.
3. Cresol Red can also be used as a color marker to monitor the process of agarose gel electrophoresis and polyacrylamide gel electrophoresis. In a 1% agarose gel, it runs approximately at the size of a 125 base pair (bp) DNA molecule (it depends on the concentration of buffer and other component). Bromophenol blue and xylene cyanol can also be used for this purpose.

Packing and Storage
Packing In 20kgs net drum .
Storage Keep tightly closed.

Safety Information
Non-hazardous for air, sea and road freight.
Detailed safety information is contained in each Material Safety Data Sheet, which can be obtained from our company.

FAQ
Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; For those high value products, you just need to freight and certain product cost. When we both cooperate for some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C or Alibaba trade insurance. You can choose the one which is convenient for you.

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.)
or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on
where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement.

Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are qualified. We will have goods tested and provide COA before delivery for sure.

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