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79428-97-0

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79428-97-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79428-97-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,4,2 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 79428-97:
(7*7)+(6*9)+(5*4)+(4*2)+(3*8)+(2*9)+(1*7)=180
180 % 10 = 0
So 79428-97-0 is a valid CAS Registry Number.

79428-97-0Downstream Products

79428-97-0Relevant articles and documents

Wittig Reactions of Phosphoniomethylaryl Compounds with Sulfonated Aromatic and Heteroaromatic Aldehydes

Maerky, Michael

, p. 957 - 975 (2007/10/02)

Bis(triphenylphosphoniomethyl)aryl dichloride derivatives react with aromatic or heteroaromatic aldehydes which have a sulfonic or carboxylic group attached to the ring system, to yield stilbene compounds of a betaine-type structure.These betaines are reacted further with various aromatic or heteroaromatic aldehydes yielding asymmetrically substituted derivatives in excellent yields.This new method is widely applicable to the preparation of water-soluble, fluorescent whitening agents of the bis-stilbene type.

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