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81471-22-9

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81471-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81471-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,7 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81471-22:
(7*8)+(6*1)+(5*4)+(4*7)+(3*1)+(2*2)+(1*2)=119
119 % 10 = 9
So 81471-22-9 is a valid CAS Registry Number.

81471-22-9Downstream Products

81471-22-9Relevant articles and documents

Catalyst-free system for sulfenylation of free (N-H) indoles with 2,2′-dithiosalicylic acid under alkaline conditions

Zhou, Xiaofei,Li, Xinhua

, p. 1241 - 1245 (2014)

A catalyst-free system for the sulfenylation of free (N-H) indoles using 2,2′-dithiosalicylic acid under alkaline conditions was developed in this study. This system provides a green, convenient and efficient method for sulfenylindole synthesis, with good yields and high selectivity. This simple synthesis was performed in a green solvent (isopropanol/H2O) under atmospheric and catalyst-free conditions. The procedure was suitable for use with N-unprotected indoles. An electrophilic coupling mechanism was proposed.

Metal free sulfenylation and bis-sulfenylation of indoles: Persulfate mediated synthesis

Prasad, Ch. Durga,Kumar, Shailesh,Sattar, Moh.,Adhikary, Amit,Kumar, Sangit

supporting information, p. 8036 - 8040 (2013/12/04)

A method which avoids metal and halogen for the synthesis of 3-arylthioindoles from indoles and diaryl disulfides using ammonium persulfate in methanol has been presented. Moreover, double C-H sulfenylation of indoles at 2 and 3-positions has also been ac

[1]Benzothieno[3,2-b]thiochromones and thiochromono[3,2-b]indoles

Gorlitzer,Holscher

, p. 193 - 198 (2007/10/02)

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