221144-20-3 Usage
Description
NC 2300 is a non-chromated sealant with a polychloroprene base, formulated with a mixture of solvents, plasticizers, and curing agents. It is specifically designed for use on various aircraft structures, offering exceptional resistance to fuels, oils, hydraulic fluids, and other aircraft fluids and chemicals.
Usage:
Used in Aerospace and Aviation Industry:
NC 2300 is used as a sealant for aircraft structures such as fuel tanks, fairings, and access panels. It provides good adhesion to a wide range of substrates, including metals, composites, and coated metals, and can be applied in various environmental conditions. Its long-term durability and flexibility make it ideal for applications where a reliable, long-lasting sealant is required.
Check Digit Verification of cas no
The CAS Registry Mumber 221144-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,1,4 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 221144-20:
(8*2)+(7*2)+(6*1)+(5*1)+(4*4)+(3*4)+(2*2)+(1*0)=73
73 % 10 = 3
So 221144-20-3 is a valid CAS Registry Number.
221144-20-3Relevant articles and documents
SALT OF (2S,3S)-3- (1S)-1-ISOBUTOXYMETHYL-3-METHYLBUTYL CARBAMOYLOXIRANE-2-CARBOXYLIC ACID
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Page/Page column 8-9, (2008/06/13)
The invention relates to purification of (2S,3S)-3-[[(1S)-1-isobutoxymethyl-3-methylbutyl]carbamoyl]oxirane-2-carboxylic acid [hereinafter, referred to as the carboxylic acid] using the salt of the carboxylic acid with an organic amine selected from the group consisting of piperazine, adamantane amines and others. The invention also relates to providing crystalline sodium salt of the carboxylic acid. The sodium salt is usable as a material for preparing medicaments and improved in storage stability, and has the following characteristics: DSC: exothermic peak observed at a temperature in the range of 170 to 175°C with weight decrease; andcharacteristic absorption bands of infrared absorption spectrum (KBr tablet): 3255, 2950, 2860, 1670, 1630, 1550, 1460, 1435, 1395, 1365, 1310, 1260, 1110, 890 cm-1.
