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77735-42-3

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77735-42-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77735-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,3 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77735-42:
(7*7)+(6*7)+(5*7)+(4*3)+(3*5)+(2*4)+(1*2)=163
163 % 10 = 3
So 77735-42-3 is a valid CAS Registry Number.

77735-42-3Relevant articles and documents

THE ACTION OF THIOLS ON DERIVATIVES OF D-XYLOSE

Blumberg, Karl,Es, Theodorus van

, p. 253 - 266 (2007/10/02)

The action of thiols on 1,2,3,4-tetra-O-acetyl β-D-xylopyranose gave 2- and 5-alkylthiopentose dithioacetals and alkyl 1-thio-D-xylopyranosides.On treatment with thiols and trifluoroacetic acid, 3-O-acetyl-1,2-O-isopropylidene-α-D-xylofuranose derivatives rapidly formed 4-O-acetyl-2,3-dialkylthio-D-ribose dithioacetal derivatives, which were in turn converted into 4-O-acetyl-3-S-benzyl-2,5-epithio-3-thio-D-ribose (or D-arabinose) dithioacetal.

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