Back

Formaldehyde 3.7-4.0% w/v buffered to pH=7 and stabilized with methanol (CE-IVD) for clinical diagnostics

Formaline, Formol

Assay (Iodom.): 3.7-4.0 %
Code
252931
CAS
50-00-0
Molecular Formula
CH2O
Molar mass
30.03 g/mol

Recommended prices only. To see your prices login or contact your local distributor.
Box prices only valid with purchase of full box.

code packaging size price per unit box price per unit
Code & packaging Price per piece
252931.1211
code
252931.1211
packaging size
1000 ml
price per unit
single 28,30€
box price per unit
24,06€x 6 units
252931.1214
code
252931.1214
packaging size
5 l
price per unit
single 72,40€
box price per unit
61,54€x 4 units
252931.9914
code
252931.9914
packaging size
5 l
price per unit
single 69,60€
box price per unit
252931.0715
code
252931.0715
packaging size
10 l
price per unit
single 98,50€
box price per unit
252931.1215
code
252931.1215
packaging size
10 l
price per unit
single 109,20€
box price per unit
252931.1315
code
252931.1315
packaging size
10 l
price per unit
single 125,20€
box price per unit
252931.0716
code
252931.0716
packaging size
25 l
price per unit
single 234,90€
box price per unit
molecule for: Formaldehyde 3.7-4.0% w/v buffered to pH=7 and stabilized with methanol (CE-IVD) for clinical diagnostics
Density:
1.019 kg/l
Solubility:
Miscible with water
Physical Description:
liquid
Product Code:
252931
Product Name:
Formaldehyde 3.7-4.0% w/v buffered to pH=7 and stabilized with methanol (CE-IVD) for clinical diagnostics
Quality Name:
for clinical diagnostics
Headline Comment:
In Vitro Diagnostic medical device class A in compliance to the Regulation (EU) 2017/746.
Specifications:
Assay (Iodom.): 3.7-4.0 %
pH: 6.8-7.2
Methanol (w/v): 1 - 1.5 %
Hazard pictograms
  • GHS07 Hazard
  • GHS08 Hazard
WGK:
2
Storage:
Room Temperature.
Signal Word:
Danger
GHS Symbols:
GHS08
GHS07
H Phrases:
H350
H341
H302
H317
P Phrases:
P201
P202
P261
P264
P270
P501
P272
P280
P281
P301+P312
P302+P352
P308+P313
P321
P333+P313
P330
P363
P405
Master Name:
Formaldehyde 3,7-4,0% *buffered to pH=7 and stabilized with methanol
Synonyms Long Text:
Formaline, Formol
EINECS:
200-001-8
CS:
2912 11 00 00
Index Nr.:
605-001-00-5
Download TDS file for complete specifications

Comments

Histology
Histology is the area of biology that studies the composition, structure, and characteristics of the organic tissues of living beings. Histology is closely related to microscopic anatomy, as its study does not stop at tissues, but goes beyond them, also observing cells internally and other corpuscles, and is related to biochemistry, cytology and medicine. - Histology has become very important in medicine and biology as it is crucial for these disciplines because it’s in between the intersections biochemistry, molecular biology, and physiology on the one hand and pathological processes and their consequences on the other. - Classical histology techniques are applied in medical laboratories for the diagnosis of a wide variety of diseases. These techniques are adequate in most diagnostic cases. However, when diagnosis with these classical techniques cannot be considered reliable, additional methods must be used. These techniques include histochemical staining, immunohistochemical methods, DNA hybridization, fluorescence in situ hybridization (FISH), PCR, flow cytometry and others. - The medical laboratories mentioned above focus on primarily on production-based applied science (number of diagnostics tests), as opposed to research laboratories which focus on basic science on an academic basis. - A medical laboratory or clinical laboratory is the place where tests are usually performed on clinical samples to obtain information about a patient's health in terms of diagnosis, treatment, and prevention of disease. - Research laboratories use conventional techniques for Genomics, Proteomics and Cell Culture procedures. - PanReac AppliChem branded products for hospital laboratories: - Medical laboratories: Microscopy products. - Research Laboratories: Genomics, Proteomics and Cell Culture Products. - Medical laboratories - In many countries there are mainly two types of medical laboratories depending on the type of research performed. - Hospital laboratories: laboratories integrated into a hospital to perform tests on patients’ samples. There are 4 different types of laboratories: - Clinical pathology laboratories: hematology, histopathology, cytology, routine pathology. - Clinical microbiology laboratories: bacteriology, mycobacteriology, virology, mycology, parasitology, immunology, serology. - Clinical biochemistry laboratories: biochemical analyses, hormone assays, etc. - Molecular diagnostic laboratory or cytogenetics and molecular biology laboratory. - External clinical laboratories: for extremely specialized tests, the sample can go to an external research laboratory. - ITW Reagents offers a complete range of products for histology, hematology, and microbiology under the PanReac AppliChem brand, including the most common used reagents in the process of sample preparation for microscopic examination. This range covers all stages of fixation, clearing, paraffin embedding, staining and mounting. ITW reagents also have a wide range of products for research in different areas in Life Sciences for assays to be developed in hospital laboratories: genomics, proteomics, and cell culture. - Many of the PanReac AppliChem branded products used in microscopy carry the CE IVD marking in compliance with the new European Regulation (EU) 2017/746 on in vitro diagnostic products (IVDR). - Histological processing techniques and stages - Although most of the stages of histological processing are common, some of them are unique to a single type of sample processing. For example, embedding is done only on tissues and heat fixation only on blood samples. - The most common stages and the products used are as follows: - Fixation: Fixation interrupts degradation processes that occur after cell death, trying to preserve the tissue/cellular architecture and composition as close as possible to how it was in the living organism. The most common type is chemical fixation with Formaldehyde 3.7-4.0% w/v buffered to pH=7 and stabilized with methanol and, for increased safety, Histofix® Formaldehyde single-dose ready-to-use preservative. - Dehydration and clearing: Dehydration is the complete removal of water from the specimen or tissue sample so that it can be properly embedded in the subsequent non-water-soluble embedding media. The fixed and washed specimens are passed through 96% alcohol and then absolute alcohol for varying lengths of time, typically one and a half hours in each bath. Clearing is the replacement of the drying agent with a substance miscible with the embedding medium to be used. The most common products in this stage are alcohols such as absolute ethanol, 96% ethanol, 70% ethanol, which can be denatured or not, as well as xylene. - Inclusion: by inclusion, the water in the tissue is replaced by a liquid medium capable of solidifying under suitable temperature conditions. Paraffin wax P.F. 55-58°C plasticized + DMSO in lentils or simply Paraffin wax P.F. 56-58°C in lentils is used for this purpose. - Cutting: Paraffin-embedded tissues are cut thinly enough (4-6 microns) to allow light to pass through for examination under a microscope. This is done with a microtome: a mechanical instrument used to make micrometric sections of tissue. We recommend our paraffin cleaner to keep the microtome clean. - Clearing-Hydration: Dewaxing-hydration is the process of removing the embedding medium from paraffin-embedded tissue sections and rehydrating them for proper dye penetration. The most common reagents at this stage are alcohols such as Absolute Ethanol, Ethanol 96%, Ethanol 70% which may or may not be denatured in addition to Xylene. - Staining: Most tissues, especially those of animal origin, are colorless unless they contain pigment. It is therefore necessary to stain them for microscopic observation. This is achieved using dyes, substances which, in contact with a suitable support, bind to it in a durable way, transmitting its color. The most used dyes are hematoxylin and eosin, but there is a wide variety of stains depending on the tissue to be stained. - Mounting and immersion: Once the preparations have been rinsed, they must be mounted definitively. Mounting agents can be aqueous or non-aqueous; the type used depends on the relevant protocol. Examples of mounting media are DPX, Canada Balsam and Eukitt®. Immersion media are liquids, often natural oils, which have a defined refractive index. It is important that the refractive index is approximately 1.5 (same index as glass). This allows for a homogeneous oil immersion. For this purpose, Immersion Oil or Cedar Oil is used. - Microscopic analysis: This is the microscopic observation phase. No additional reagents are needed.

FAQs

Is the formaldehyde IVD registered?

Yes, the formaldehyde is registered under the European Regulation (EU) 2017/746 on in vitro diagnostic medical devices (IVDR).

What is the CAS number of Formaldehyde 37-38%?

The CAS number of Formaldehyde 37-38% is 50-00-0.

CAS Formaldehyde 37-38%?

The CAS number of Formaldehyde 37-38% is 50-00-0.

CAS 50-00-0?

The CAS number 50-00-0 is assigned to Formaldehyde 37-38%.