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20284-29-1

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20284-29-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20284-29-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,8 and 4 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 20284-29:
(7*2)+(6*0)+(5*2)+(4*8)+(3*4)+(2*2)+(1*9)=81
81 % 10 = 1
So 20284-29-1 is a valid CAS Registry Number.
InChI:InChI=1/C159H288O18/c1-9-17-25-33-41-49-57-65-73-81-89-97-105-113-121-129-149(160)170-141-157(142-171-150(161)130-122-114-106-98-90-82-74-66-58-50-42-34-26-18-10-2,137-168-139-158(143-172-151(162)131-123-115-107-99-91-83-75-67-59-51-43-35-27-19-11-3,144-173-152(163)132-124-116-108-100-92-84-76-68-60-52-44-36-28-20-12-4)145-174-153(164)133-125-117-109-101-93-85-77-69-61-53-45-37-29-21-13-5)138-169-140-159(146-175-154(165)134-126-118-110-102-94-86-78-70-62-54-46-38-30-22-14-6,147-176-155(166)135-127-119-111-103-95-87-79-71-63-55-47-39-31-23-15-7)148-177-156(167)136-128-120-112-104-96-88-80-72-64-56-48-40-32-24-16-8/h65-80H,9-64,81-148H2,1-8H3/b73-65+,74-66+,75-67-,76-68+,77-69+,78-70+,79-71+,80-72+

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