LABOTEST-BB LT02090809;CI 764;CI NO 764 (1924);BETZ 0212;3,3-BIS(4-HYDROXYPHENYL)-1(3H)-ISOBENZOFURANONE;3,3-Bis(4-hydroxyphenyl)phthalide;3,3-BIS(P-HYDROXYPHENYL)PHTHALIDE;TIMTEC-BB SBB008868
CAS:
77-09-8
MF:
C20H14O4
MW:
318.32
EINECS:
201-004-7
Product Categories:
Furan&Benzofuran;Analytical Chemistry;Indicator (pH);pH Indicators;Chemistry;Indicator Solutions;Indicators;Titration;Indicator SolutionsStains and Dyes;P;Stains&Dyes, A to;API;Phthalein
Mol File:
77-09-8.mol
Index Name
Specifications
Results
Appearance
White powder
Conform
Assay
99.0%Min
99.60%
Melting Point
258to263 Deg C
260.5to262.5 Deg C
Heavy Metal
15 ppm Max
10ppm
Arsenic
8ppm Max
8ppm
Residue on ignition
0.1%Max
0.06%
Loss on drying
1.0%Max
0.16%
Fluoran
Pass
pass
Chromatographic Impurity
1.0%Max
0.50%
Organic Volatile Impurity
Pass
Pass
This product is a commonly used acid indicator with the range of color change between pH 8.2 (colorless) to 10.0 (red). Phenolphthalein is also a drug, can be used as a laxative, acting on the colon for the treatment of constipation. Used as an acid-base indicator; as irritant laxative for the treatment of constipation
Company Information
Qingdao Sigma chemical Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc. The aim of Qingdao Sigma chemical Co., Ltd is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
Packaging & Shipping
Our Services
FAQ
Q1: Are you a manufacturer? Answer: Yes, we are factory founded on 2002. Q2: How to contact with us? Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours. Q3:Which kind of payment terms do you accept? For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account Q4:Can you give me a discount price? Surely,It depend on your qty Q5:How can i get a sample? free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future. Q6: How to confirm the Product Quality before placing orders? A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests. Q7:How do you treat quality complaint? A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
