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82294-67-5

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82294-67-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82294-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,2,9 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 82294-67:
(7*8)+(6*2)+(5*2)+(4*9)+(3*4)+(2*6)+(1*7)=145
145 % 10 = 5
So 82294-67-5 is a valid CAS Registry Number.

82294-67-5Upstream product

82294-67-5Downstream Products

82294-67-5Relevant articles and documents

A novel and convenient conversion of chlorins to phytoporphyrins during the modification of chlorophyll derivatives

Ma, Lifu,Dolphin, David

, p. 7791 - 7794 (1995)

Chlorophyll derivatives 2a, 2b, 2c and 3 have been readily converted to their corresponding phytoporphyrins 5a, 5b, 5c in excellent yields using benzoyl chloride in DMF. This method affords a new and efficient route to prepare monovinyl porphyrins which can be used as intermediates for the further preparation of chlorophyll related petroporphyrins and regiochemically pure benzoporphyrin derivatives for use in photodynamic therapy.

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